they are trying to appeal to a very vocal and fast-growing demographic - female geeks ("oh, look - there's only women in our comic! No guys in here at all. And they are all empowered women because they, like, uh-I dunno-have sex with each other and kick ass?")
Kind of like when a bunch of male videogame developers tried to create an empowered woman and ended up creating Bayonetta.
