I'm going to get attacked for this, but I'm gonna say it anyway . . .
Why is this a problem? I mean, seriously, I know athletic lesbians and I also know non-athletic lesbians. Are comic book writers not allowed to create athletic lesbians? Can they only make non-athletic lesbians?
I don't know much about the writer, and I obviously have no idea what he was thinking when he wrote this character, but I don't think we can just assume that he is playing off of a stereotype here.