Carnage, I suspect that if you were her employer your moral view point may be some what different.
Whether people are for or against this ruleing many female pilots will have a tougher time getting jobs because of it. That may be ilegal but many small operators out there would rather employ a male who is going to be the main earner in a family than a female who will be haveing kids in a few years.
Not very PC but a fact of life.