Only in the first scan, in many others, you can see a lot of people within meters.
The first and last scans are the only 2 showing wide shots of the battlefield. I think the close ups that are meant to show the goons are scared kinda mischaracterize how wide they're spread out for the sake of showing them scared.
Your points might work if we could know she was actually giving her best. But given the difference in tier, people calling her a monster and sending people flying fail to prove that. She could do all that while holding back. She doesn't even have to be as precise as you described, but already holding back makes the feat much more unquantifiable.
Like I said the "holding back" argument doesn't work. Firstly, there's literally no evidence she's holding back.
Secondly, she has no way of effectively measuring her strength and lowering it to exactly where she can OHKO blitz people while minimizing stamina usage.
And lastly, the gap really isn't that big. We see fodder delinquents can pose a threat and take hits from higher tier characters all the time. Draken for example took heavy damage from a baseball bat from a fodder and was clearly worn out from fighting a handful of no name delinquents.
Hell Hanma believed 100 fodders from Moebius can take down Mikey alongside a Draken weakened by said fodders AND 2 more people. And Hanma literally blocked a kick from Mikey like 1 page before this so he absolutely should know how strong they are.
So the AP and speed gap definitely isn't nearly large enough for her to just chill and conserve stamina. She absolutely should need to put in a significant amount of effort into her blows to OHKO them and everything implies she does.
We also have to consider that she is doing it completely unbothered. In an actual fight, you take hits and feel pain; you also have to keep up mental performance. She ain't doing anything, there's not a single thought in her little head, she's just going with feeling, nor is she feeling any pain. Even doing "her best" is questionable; is she giving her absolute best, or just "her best" she can output constantly? Was she sprinting at absolute top speed for all that time? Because people can actually react to her moving here and there, just not to her attacks.
Being carefree doesn't really matter ngl. Yeah she's obviously not taking hits but she's still performing acrobatic jumps and whatnot to one shot everyone effectively.
Again using the Moebius scene as a reference point, if 100 no name delinquents are a threat to Mikey, unless she dwarfs him in stats she definitely shouldn't have the opportunity to hold back enough to preserve stamina.
Also, now that I look at the scans, we know she just beat more than 50 opponents.
She just stopped counting after 50 and believes it was close enough to 100 anyway. And previously declared she'll take on the 100 which also implies she's capable of doing so.
The timeframe is also unquantifiable; for all we know, she could have taken breaks in between, even if short.
Do you genuinely think the army of enemies surrounding her will just let her take a timeout when she's out of breath? That sounds a bit silly to me ngl.
If you argue she did all that in a single go, then she clearly didn't fight for much time. IRL a single boxing round lasts 3 minutes.
Time isn't actually important here, which is the main reason feats like waking for 80 hours are so misleading. What matters is the amount of strain she put on herself.
Technically an MFTL+ character can run around the planet 100x in less than 1 second, but you wouldn't say it's below average human stamina because they only moved for 1>~ second.
Obviously a subsonic character fighting other subsonic characters is going to be shorter than normal boxing matches between irl people. But the amount of actual strain she takes during that time can still be as high if not way higher.
So I think peak human can probably work and only way it wouldn't is if we made a bunch of assumptions.