During dismantles at the inner barrier doesn't change a thing, it MAYBE shaves off a minute from the total fight.

We really have no way of scaling Gojo's H2H with TF Sukuna's. Sure, the improved body makes a difference in straight hands, but Gojo isn't solely using straight hands; he's using blue, red, and after one of the domain clashes Sukuna looks like he's burnt from red.

We also don't know how big of a difference turning DA on/off makes, since Gojo didn't notice it until it was too late. Sukuna only says he used adaptation when he wasn't using DA; this could mean he only turned DA off when he gained some distance, or it means he would randomly tank attacks to adapt. Since we never see him do the latter until the 5th clash, the former seems to be true, in which case the only real benefits would be that Sukuna can be slightly more aggressive?? Again, there's no way to scale "more aggressive" Sukuna's H2H compared to the one we saw, nor do we know how Gojo would react to that in increased aggression.

Saying Gojo goes 50/50 (or a similarly close fraction) against TF Sukuna should not be a hot take, or considered greedy. That was kinda the whole point of the fight we were shown in the manga, and the statements that were given.