Too be honest, not to make any excuses for Junie... But he wasn't at his best mentally in the house, therefore he didn't fight to the best of his abilities. He didn't even train for any of his fights, as stated through the other fighters blogs.
I'm sure he is a much better fighter then he was in the house. But he didn't really get a chance to show it. Not to say Efrain wouldn't still beat that ass, but I'm sure he would've put up a better fight.