The little things were impressive. I think people are just expecting too much. It's a video game and not real life. With so many variables in place, it's hard to program every little thing.
When Pettis throws the wheel kick, Aldo lands a strike during the animation. Unlike every other game, the Aldo kick wouldn't have done anything or the animation would reset. Instead, Pettis reacted to the kick while IN the animation and got off balance. That's an impressive engine. Really good hit detection.
I just want a speed and stamina bar to make it a bit more simulation.