Cain's total domination

Anyone else surprised with the total domination of Junior Dos Santos by Cain? I thought it would be a much more competitive fight, but JDS just got destroyed. The ease with which Cain was taking him down at times was scary. I honestly thought they were going to stop the fight near the end of round 1 as JDS didn't seem to be protecting himself very effectively.

I was honestly shocked Cain even won the fight. I was almost sure this fight was going to be a slightly version of the first fight. It really makes me wonder if he was hurt.