And not only for them being female. Just for them being them. If the industry attracts so few females, those few might change that if they convince their colleagues to get more girls into this with strong females. And that is strong character - female secondary. ^_^
Well, canonically KOTOR2's Exile was a light side woman. And KOTOR2 was made by Obsidian. Soooo, yeah. It's not totally impossible.
Eh, that's something that's a little self-evident to anyone who's played any of the games in this genre. Every Bethesda game since Morrowind and probably earlier has had gender choice. Every Fallout game ever except possibly BoS has had gender choice. Most Obsidian games save for Alpha Protocol have gender choice. Most western RPGs in general have gender choice, in fact. Even ones where the character is fairly strictly defined, ala Mass Effect. In fact, the biggest wRPG that doesn't have true gender choice that comes to mind besides Alpha Protocol is Diablo 2. And that's just a matter of "you can't be a female barbarian or paladin; women are sorceresses or amazons." Diablo 3 is looking to change that too.
While the female characters might not get much screentime in the prerelease marketing materials, it should be pretty obvious to most gamers that as a rule, wRPGs have a female protagonist option. It's very much the exception when they don't.