If women can pee standing up why would they need to take more time to disrobe? Oh because the buttons go the other way...silly, silly silly me.
Maybe the women Ferris knows have weak bladders?
Maybe you want to prohibit people with weak bladders generally rather than women from being in the armed forces?
I personally think people are a bad move. If I were a country my security personnel would all be stones (Not Mick...) or ice those ancient Chinese were onto something there they just didn't build it big enough :