That's the exact reason why we don't scale Tatsumaki to Boros: he wasn't aware Tatsumaki attacked him, therefore he wasn't aware of that fight to begin with
That's an incorrect interpretation. What you have to ask yourself here is: Why wasn't Saitama aware of Tatsumaki's attack (which, by the way, he absolutely was, he even comments on the attack, he just didn't know who was the person attacking him)? That lack of recognition comes from the fact that she wasn't strong enough for him. If she were, he would have noticed, as he noticed Boros was strong.
Here we are again. Saitama didn't call Garou strong even after he survived his two-handed consecutive normal punches, while one-handed destroyed Boros, so Boros>Garou>CNP>Boros?
Also, he didn't call strong neither Orochi, nor EOW, despite in both cases he used a serious series against them
He didn't, because he wasn't strong enough. The reason why Boros got destroyed by CNP and Garou survived a two-handed CNP is because he wasn't trying to kill Garou. He even makes a promise to Tareo (who very much cares for both of them) that everything would be alright, and he treats Garou like a guy on a costume during the whole fight. Even the original idea of the manga was that Saitama and Garou sat at a table and had a conversation about it. Saitama only starts to see Garou as a real monster when he evolves into his Cosmic Fear Mode.
Would you the say that Rover must scale above Orochi, because he tanked a normal punch while Orochi could not? Context is a factor.
Yeah, he also used a SP against Elder Centipede, and that's why context matters. One, Orochi's Gaia Cannon matched Serious Squirt Gun, and that tells us absolutely nothing about his strength. We don't know how strong is SSG compared to a Normal Punch or a Serious Punch. It's literally impossible to measure. Second, Saitama using a serious attack against Evil Ocean Water doesn't contradict anything. I don't even know why you're bringing it and Orochi up. For the same reason SP was used against EC, it could have been used against EOW. King explains that due to EC's size, it remains could destroy the city and thus Saitama needed to end EC quickly and abruptly. I don't know why this can't be the case here as well.
In fact we can tell the difference in seriousness between Boros and Orochi because Saitama's fight with the latter is filled with jokes (the lava, the squirt gun...), and he even tells Orochi he is just a neighbor complaining about the noise. He later points to the possibility that assuming the (Monster King is somewhat strong), Orochi might be his child. There's levels to this.
Damaged, yes. It's irrelevant. Damage can have a lot of degrees in someone's body. I can be damaged by exploding due to a cannon ball, but I also can be damaged because my little borther kicks me in the shin. In the second case, damage isn't visible, but I have felt a minimum amount of pain, which is still a degree of damage.
Not necessarily. Boros can deal a minimum amount of damage to Saitama, but that doesn't mean Boros is a threat to him. This is shown by the difference between Released (who despite minimally damaging Saitama isn't perceived as a threat) and Meteoric Burst, who receives a way more convincing statement ("this is almost a real fight"), showing there's levels to threatening Saitama.
Also, the scan you posted talks about Saitama's feelings emotionally, not about Saitama not feeling anything physically, and I already explained why Saitama can be bored against different levels of powers, but still be judgemental about them.
Yes, a joke. Saitama is constantly saying during their fight that he just wants to go home, he doesn't want to be there. Why would he not want to be there if she were stronger than Boros? Saitama's whole purpose in life is to find a proper fight, or a fight that looks interesting to him. He just likes (sometimes) Tatsumaki's moves like the tornado one beacause it looks fun to do, not because he consideres it a strong attack. He twitches his muscles while being first exposed to TK powers, and literally in the next pages (where Tatsumaki is exerting the same power on him) he is able to talk casually. He couldn't contain it because he doesn't know how to deal with Tatsumaki's powers without killing her, all Saitama can do is grab her and take her out of the city. He could always punch her and end the sparring match there, but he can't do that, obviously, so of course he says he can't contain her.
Sage Centipede and EOW scale to Tatsumaki's twist, which, as seen in Tatsu vs Saitama fight, is not her full power. If you want to use that as an argument, go do a CRT to accept that first
Also, now that you've mentioned it, God considered Tatsumaki worth to be its avatar, something Garou only replicated after he obtained his full monster form... I guess that argument is not good either
I don't need to make a CRT to express my thoughts on a determinate subject here. Regardless of what they scale to, the narrative and actual showings of the manga makes it look very clear: God is observing the whole surface fight. He sees Tatsumaki vs Psykorochi and witnesses Tatsumaki's power at that certain point in time (I agree that that's not her full strength and that she was limited, but God was able to sense Tatsumaki's power when twitching and one shoting Psykorochi). Then decides to take Tatsumaki out by giving her brain damage. Even after having seen that, he acknowledges a higher power in the battlefield, "The Fist that has rebelled against God" and sends his two puppets (EOW and SC) to kill him. This belief that his minions can kill a being stronger than Tatsumaki, makes it obvious that:
SG/EOW > Saitama's power perceived by God > Tatsumaki's power against Psykorochi.
Yes, he was worthy, as well as Orochi and Psykos, and later Orochi's surviving core, and Evil Natural Water. God offers his powers to those who seek for them (Homeless Emperor comes to my mind as well), not to those who are on the top the food chain, necessarily. Garou's mind was closed to receiving them. He wanted to rule over any human or monster on Earth, he wanted to be Absolute Evil, God himself. His perfected martial arts was even called a God Slayer fist. God only saw that opportunity on him when Garou was hopeless and knew he couldn't do anything in his power to beat Saitama.
Ah shit, another time this "you're strong" stuff... going by their profiles, this Garou is above Orochi and EOW, yet Saitama used a serious punch against EOW, but not against Garou
I already explained above why this reasoning is blatantly wrong and why Serious Series doesn't always correlate to his opponents's power, context matters a lot here.
Did you read my reasoning? You didn't even address it.