He would. Did you see how slow they both were and how much they still both got hit? As I said there's a reason why Bisping didn't want to fight Jacare, Romero, Whittaker or Rockhold again and there's a reason why GSP only ever expressed interest in going to MW once Bisping was a chance.
Seriously man Bisping isn't even top 5 of that's division, top 5 guys in that division wouldn't struggle with old man Hendo. Whittaker, Rockhold, Romero, Jacare, Mousasi and Weidman would all be favourites against Bisping. He landed a fluke shot against a guy who submitted him with one arm and then refused to take on a legit contender while Whittaker took out the top 2 contenders. GSP dodged the question of defending his title against Whittaker or any other top MW, Whittaker thought GSP looked slow as well so I'm not alone. Whittaker doesn't think GSP wants to fight him either, nobody else seems to think GSP will fight the real top MW. I said this would happen and Whittaker would get screwed over again.
You don't have to believe me, just look at the actions from Bisping since he won the title and the words from GSP the moment he won.
Basically what I'm saying is this isn't Ali V Frazier 1 but more like Ali vs Quarry or Bonevena. An impressive win after a long lay off(though GSP is helped by being a gym rat) but it still wasn't against the number 1 guy.