No they don't do that little. Jess started at BHX where FOs were doing 600-650 hours per year in a base where the majority of sectors were less than 1 hour. At LHR you can look forward to 750+ hours.
This case will make no difference whatsoever to BAs policy of employing women as they have positively discriminated in favour of women for years and made no secret of the fact. Just check out how often female pilots appear in the in-flight magazine (every other month) in comparison to the proportion of female pilots in the company (less than 10%). If the company want to pull out all the stops to recruit females (and occasionally, but not in this case, flex their own rules) the they've nobody to blame but themselves when they find maternity leave and part-time requests go through the roof.