I mean, you're not even using her own definition of her own term.
As to "No viewer is going to watch this episode, see her treatment of Dragon Age, and immediately assume that she was referring
exclusively to the fact that Vaughan is a moustache-twirler", why not? I would probably assume that. Because she's right that "Just because a game may include a positive female character it doesnt mean other sexist representations in that game are then magically ok." You can be frustrated by one aspect or one scene of a work without writing the whole thing off. Basically-good works include basically-bad scenes all the time.