From the interviews with her posted earlier -- particularly the part where she quotes Muriel Rukeyser -- I get the impression that her general philosophy is in line with postmodern feminism, one of the central tenets of which is that media is best analyzed in terms of its relationships to other media. In other words, analysis of individual works is significantly less important than identification of general trends consistent among similar works. She goes through examples quickly because she's trying to establish the existence of an emergent system of consistently negative or marginalizing portrayals of female characters in media. In-depth criticism of specific examples of such portrayals is considered comparatively unimportant, generally speaking, in postmodern thought.
This sort of media criticism honestly does tend to look like blowing small things out of proportion, but it makes a lot more sense once you understand that the objective isn't to critique a specific game, but rather to demonstrate a general trend that is consistent across multiple games and even mediums.
To clarify using a specific example she raises: When she mentions Metroid rewarding players with increasingly-naked depictions of Samus based on player performance she is not so much criticizing Metroid, the specific game, as sexist. She is criticizing a general practice of using the display of a woman's body as a form of reward as sexist, and using Metroid as an example of one specific example of that practice. Her statement is not really "Metroid is sexist," but is more accurately "Metroid is consistent with a general trend of portraying women's bodies as a reward, and this general trend is sexist."
It's a somewhat subtle distinction, but it's a rather important one.