Maybe this picture will help jog your memory. The same memory that thinks Royce took a draw with Takada. Royce gets no respect because he isn't interested in proving himself against the current elite, he's already done that. He needs bigger challenges to prove the effectivenss of bjj, like take on an opponent that outweighs him by 300 lbs (and submit him). Just because Royce hasn't submitted wandy yet, doesn't mean he can't. He's beyond that in his career.
I don't seem to remember Wandy raining down GnP from the mount on Yoshi in either of the fights they had. Maybe he was injured or something.