I don't know where the personal responsibility and "having to make choices/sacrifices" have gone.
This couple obviously knew that it would be problematic for them to have a child, due to their rosters. Yet they have one and expect their employer to accommodate their choice?
I do believe in fairness and equality, but this is not the question of sex discrimination towards women.
In fact, I suspect this lady is making it harder for female pilots to get a job, by being unreasonable to their employer. If she wins, the companies may become more reluctant to offer female pilots a job, in case they demand a "special" working arrangement that costs companies more. 50% work, 50% pay will cost the company disproportionately more than 100% work, 100% pay workforces, due to medical, training and backup administration costs etc.
I think what she is demanding is very unfair to BA.
Just because she's female, it does not mean that she had no choice but to have a child. She (hopefully in conjunction with her husband) made that choice to have a child. Discrimination is about things that you do not really have a choice over - sex, race etc. Having a child and being disadvantaged as a result does not seem at all discriminatory to me. In my parents' days, they used to make a choice between children and career. My mother was one of those women who did make that choice and sacrifice. I think that's the way it should be. As some people have said, you can't have your cake and eat it.
I'm sorry, but the type of flying they are doing is obviously quite incompatible with having a child. If she loved her career so much, she should not have had a child. We all have to make choices and sacrifices in life, and it's sad that some people can't see that. I notice this more and more from the female population when it comes to having a child and career - they seem to see both as their automatic right - and to have the best of both worlds! It simply does not work that way.