Upon re-reading, nothing particularly egregious. There is the characterization of Sad Puppies as a movement to push women and nonwhites out of the Hugo Awards, when I believe the motivation is that the participants want their fun sci-fi escapism to be evaluated as such and not by how well it coincides with the Hugo panel's politics.

Of course, the net effect of their effort has been, in practice, to favor white male authors, so the article is accurate at face value. I wouldn't expect the author to go in detail into something only tangentially related, either. It's just bothersome to see every controversy in traditionally geeky hobbies lately reduced to "white male bigots form hate mob," so even a relatively neutral mention feels biased sometimes.