He is definitely past his prime now which is unfortunate for him and the fans. But he has gone through brutal losses like this before and came back strong. He becomes arrogant and loses partially because of that and then works hard with a more humble approach and comes back strong. He has done it for most of his career, hell Badr Hari KO'd him in 09's K-1 when he was even more ****y and foolish than last night. The next year none of that was there and he ended up as the champion.
I still think he takes Cain's head off and would have the upperhand against JDS. Bigfoot is nowhere near the level of these guys, that freak can have his moment and be delusional but he will go nowhere.