I'm just catching up (just finished watching the fight). I said before it, It's huge kudos for Stipe to go in there and win - I think this is monumental win for him.
However, the caveat is Ngannou's adrenalin dump in the first round completely equalised the fight and from there, Stipe could utilise a strategy that I don't believe would be available should they rematch.
I've not caught up on the thread, I'm sure the running commentary will be that Ngannou simply gassed for being the size he is, but I don't think that's true - his inexperience caused that draining of the tank, not his size. Even then, he still caught Stipe with some shots that would have dropped a lesser man. Miocic's chin is something else.
Anyway, I wrote a lot before the fight favouring Ngannou, and I'm happy to eat humble pie on the outcome, but, and there is a but here, catching Ngannou on the way up in his development was important, imo. The adrenalin dump doesn't happen if Ngannou's not so wet behind the ears.
Stipe's heart and gameness is unquestionable, though. It's not his problem that Ngannou had whatever issues he did, and he was smart enough to pile on top of them, which shows his fight intelligence.