The author of that article seems to have diluded himself into believeing that shojo comics are immune to flaws (he talks about them as if they're the second coming!). Shojo comics are fun; but they can also be just as crappy and deritive as a bad superhero comic.
I think the reason a lot of manga fans (both male and female) avoid comic shops is an irrational hatred of any comic that wasn't made in Japan. Since most comic shops specialize in American comic books and have little to no manga selection, they have no reason to seek them out.
As for women specifically; I think a lot of them are afraid that they'll run into a bunch of creepy Comic Book Guys if they go near a comic shop (a valid concern; those types of shops are scary). Luckily for me, the shop I frequent is run by a very nice, not creepy guy. I go there for my Uncle Scrooge, Strangers in Paradise, Bone, and Batman fix. But I get my manga at Borders because his manga selection is pitiful
The main thing that drew me to manga was the number of female artists. I've wanted to be a professional cartoonist since I was 10; but the fact that I almost never saw a woman's name in the "artist" or "creator" credit of a cartoon or comic always bothered me.Shoujo manga -- Japanese graphic novels for teenage girls -- have caught the American comics scene flat-footed. Women represent the minority of creators in both the superhero-comics and art-comics scenes, and while there tend to be more female indy-comics fans than devotees of Marvel and DC's output, theirs is likewise very much a minority viewpoint. American comics is a boys' club. Because of this, the emergence of manga, and its attendant introduction of a wholesale tradition of comics for girls of all ages, has left many of us searching not only for the correct way to interpret it, but indeed for language sufficient to even describe the phenomenon.