Jen got venom? I don't remember that. If she did it was only for the same reasons that they did it to Anne Hathaway, because they just wanted to hate on her because she was so good. Days of Future Past got praised for being the best X-Men film ever. And Jen as Mystique was a big part of it. Anyone who has an issue can blame the writers. They already increased Mystique's role in First Class long before Jen became a star.