It's any fandom's right to get insanely butthurt over everything and anything before... You know, actually experiencing the thing that's getting them so angry.
Just look at the fan reaction to Ben Affleck being cast as Bruce Wayne/Batman. "WAAAAAAH! He'll be terrible! Just look at him in DareDevil from 10 years ago! RUINED FOREVER!" I'll be sure to let Chris Evans know then that he is a shitty Captain America based on his portrayal of Johnny Storm/The Human Torch in those two lame Fantastic Four movies.
You forgot his involvement In Scott Pilgrim vs. The World.