People are right about this though. It wasn't just that he was getting hurt. Even at the end of the first he was going back to his corner looking completely dejected. And it's not like he'd gotten flogged that round either. He just lost position, wound up on bottom, and had to waste a bit of energy there. He'd only taken a few hard shots on the feet.
If that's breaking his will so much then he wasn't anywhere near ready for this level of fighting. And he might never be. Not everyone has it.
It feels like a lot of these wrestlers who are so used to dominating at wrestling can't handle it when things go remotely wrong in an MMA fight. They're so used to being the hammer that once they become the nail they break mentally before they've even got hammered in.