I don't see how women being in the minority user base makes them a higher priority demographic target, on the contrary... FFXIV isn't going to interest women any more than FFXI did.
The industry is very much interested in appealing to the female (and casual) demographics. Just take a look at your local Gamestop store shelves, and think how much the available titles have changed in the last decade. MMOs are no different. There are few recognizable trends that are targeting female and casual demographics that have been adopted almost universally, even though they stereotypically would be contrary to, or of no interest to, the male hardcore demographic.
That being said, I don't think women would be selected for Beta over men.
I'm sure technical concerns are far more pressing. Edited, Dec 27th 2009 1:28pm by Zemzelette