I fell asleep and had to catch UFC the next morning..WOW!
I think what people fail to understand, and i think what he was trying to say in his rant, is that these guys at this level put everything into it and between fights its a long time just thinking about what happened and what you would do differently. When you put so much into it and really give it your all, but it's still not enough, it's kind of heart-breaking realising there's a guy you will probably never be able to beat. I think unfortunately this happened to him live on camera and he just shot from the hip about everything he was thinking. His friends/family should have stopped him.
There was a distinct change in him, he was much more aggressive at the beginning but that maybe changed in the Klitschko fight (?) where he realised there were guys out there that are amazing. Even though he's a gold medalist, i think pure boxing talent-wise and actually even experience-wise, he is behind the top, top guys.
Moving on, i think Usyk vs Tyson is a completely different fight. Usyk is SLICK, he moves so well and never lets anyone set but the biggest difference i see is that Fury doesn't really set either. He is almost the same (obviously slower) with his slickness but he moves so well, i don't think he'd be outboxed as much and he also has the ability to actually fight at distance but also uses his frame so well up close.