But BA have also 'given' away 140 mainline pilot jobs to BA Citiexpress! (How generous!)
So even with the prolific retirement rate, it may take a while to catch up with the 'shrinkage'! (FS & S and all that!)
FWIW I believe some people actually working for BA may have to take fully paid 'gardening' leave as they await courses!
Also, BALPA apparently have a fairly negative view of the new pension arrangements, and may be awaiting the next recruit as a 'test' case!
Are you getting the picture yet?
I would suggest you find someone better to work for, particularly if you are the wrong side of 30!