I'm glad to see that the state of this thread has improved since this morning (other than the occasional tired old kitchen joke). I hope it catches the eye of the devs, and they consider what we have to say.
As you can see by reading through the thread, many of the people here are women, and all of the women here are in favor of female representation on the cover. That really blows a hole in the "men are the only demographic that matters" argument, no? Bioware in particular has a large percentage of female fans, and there's a reason for that: the games are great at representing women respectfully.
And, by the same token, all the people in this thread who are AGAINST the idea of female representation on the cover... are men. So that should put it into perspective for you: these dudes aren't listening to the women. They don't want to hear our opinion. They are truly sexist.
Importantly: while there's nothing wrong with a cover with no protagonist at all, in theory, bringing that up is derailing the discussion. You don't fix a lack of female representation by... continuing to not represent women. Reminds me of people who, when asked their opinion on gay marriage, say "well, actually, I don't think marriage should exist at all." Like, that's a valid viewpoint, but by expressing it in this context you're just pushing our concerns to the side.