Well, Arturia is. Francis Drake, for example, is a pirate chick with massive boobs and no shirt under her coat, and Jack the Ripper is a scantily-clad loli. They're probably also screaming about how transphobic Saber's route is because accepting her status as a woman instead of a king/tool is a major part of the plotline (and Shirou is massively sexist at some points, never mind that he gets over it in the end). It's a relatively obscure anime porn game, I don't get why they're kicking up a fuss about it. But then again, that goes for 99% of what they whine about.