In this article, as with other places I've seen, the shocker seems to be that women adminstrators are rating plays by other women more negatively. That's one thing that actually makes perfect sense to me. Chances are that woman is going to have to answer to a man, either an artistic director or a board chair or somebody, since most of those positions are held by men. And when she does, she's got to make damn sure that there's no whiff of "I chose this play because it's by a woman." In fact, choosing a play by a woman at all is pretty suspect. You have to be stringent and harsh, even cruel, because you have to protect yourself. If all you bring to your AD are plays by women, even if they are the best plays, you're not going to keep that job for long.
And there's the whole tourism aspect. Since women playwrights are often hemmed into writing plays about women and "women's issues" (whatever the hell that means), there's a good chance that another woman would be very familiar with those issues and attitudes and able to smell out false steps more easily than a man. Since a man is a tourist in the world, he takes it all in at face value, maybe even elides over some of the false steps because, in his mind, it's fresh and new and innovative.
When you're dealing with a culture rife with sexism, racism and other forms of inequality, it takes on many, many forms.