Their "To Fly, To Serve" advert a couple of years ago was guilty of that

"Those first young men, pioneers, the aviators..."

Plenty of aviation pioneers were women, some were even British.

Amelia Earhart?
Edith Cook?
Diana Barnato Walker?
Amy Johnson?
Princess Anne of Löwenstein-Wertheim-Freudenberg?

BA probably began with only men though, so that's ok.