Bisping was at the level of a guy ranked well outside the top 10. He got dropped twice by a 46yr old man who was on a huge slide ranked outside the top #10.
He caught lightning with Rockhold, but it doesn't change the fact that he wasn't a top ten fighter. Hughes was a P4P fighter just one weight class below.
It isn't a good match-up but he's that much better than that version of Bisping he likely would have won. Shit: Woodley, Prime Lawler, Condit, Shields, Wonderboy, Masvidal... They all would have beated one eyed Bisping.