While I'm fine with characters like Madara, Naruto, Kaguya and all them scaling, I'm in complete disagreement with the likes of the current Kage, Shikamarau and such scaling to 5-B even with just his shadows, it's just an outlier. Iike Damage said, were pretty much out voted here but that's not going to stop me from voicing my disagreement.
You can use the power escalation argument/standard shonen who ha nonsense but there's a limit in my opinion. Look at it from this perspective, Hashiram was dubbed the God of Shinobi, and you had other powerful ninja around during his time and the later generation couldn't compare because they people from the past were just built different. Biju were saught after because how powerful they were, characters like Minato and Itachi and so on are treated as prodigies that only show up once in a lifetime, and in the end we see what God Tier is when it requires Ten Tails/Sage of Six Paths juice to reach even for characters like Madara.
However, here come the current Kage, who weren't anything to special during shippuden. They weren't weak, but they damn sure weren't top dogs, they were just apart of the generation that fell before the old generation of battle harden shinobi. They didn't show any signs of exponential grown during their life, heck minus Gaara, the others were the previous Kages subordinate. They were those who's look on in awe at the power displayed by Hashirama vs Madara and be like "Oh he'll no." But then just give them 20 years and they didn't just reach the old generations level, they didn't just pass it, the ******* shattered It!
You mean to tell me that these characters that were showcased as not as powerful the OGs, and couldn't compare to the power of the God Tree, just decided to do some off screen training like they've never did before and just broke their limiter and surpassed anything that the previous ninja, who were not only stronger than them, but also treated as prodigies with all the potential could even hope to achieve in their entire lifespan in a shorter time then they have been alive without any God buffs.
Now let me be clear, I'm not denying the scaling, the feats are there and this you have justification. So everyone's agreement has valid reason. I'm just saying that from the perspective I'm looking at, the current kage/old scaling to the true God Tiers just doesn't make sense. Also, before anyone brings up Dragon Ball, another verse or whatever, I don't agree with it when other verses due it either so don't bother. It may be standard for manga to do this but what is the limit?
Regardless, my opinion isn't going to change anything since it's clear majority agree (for valid reasons) so do as you will, as I said, I agree with majority of the characters listed but the Kage and a few others.
