Sure, and the male characters have less accuracy because they're distracted by thinking about sex six times a minute. :)
Seriously, though, it makes sense from a logical standpoint for the visual differences between the genders to be subtle. I read somewhere that research into real-life combat shows that, to be blunt, boobs get in the way. The most effective armour for women flatten the breasts and they've got some impressive military-grade binders that can completely flatten D-cups. (Seriously!) So armour that emphasizes the breasts like in the above Doomgirl pic is actually rather impractical.
Anyway, I mostly wanted to speak up for the women on this site (who are mostly absent just like everyone else) who play this game and who I know would want some representation.