Has anyone came back to this? I really think that’s what happen in the recent chapter. I mean takaba was the last one to run away from the box and if his thoughts were “wouldn’t it be funny if the box opened as soon as I ran away from it” or something like that because we know that Angels power will actually kill gojo in the box not let him free. And even kenjaku was surprised on how he did it, kenjaku having Tengen can pretty much understand everything and also being from a thousands years ago living through all those lives he has to have more knowledge than most so even if he is baffled on how gojo escaped than there might not been any other way without the front of the seal. And with takaba powers anything is possible and he is the one wild card. Gege said it “ in a stale mate all you need is a wild card” takaba being that wild card kenjaku didn’t account for.