It must be very difficult for her to cope - particularly since her partner is also a BA pilot.
I reckon that BA will have to back down though. I dont see the problem at all. Why should people have to work flat out all the time anyway? There are loads of pilots wanting to take up the slack who would love to join BA. The currency thing is a matter for the CAA.
One could argue that a part-time 0.5 FTE pilot may arrive at work happier and more well rested and therefore safer in any case
This child friendly legislation thing will come up again and again - .... and not just at BA ... it makes sense for mothers and fathers to be with their children and not at work all the time...