BA can just wait until BASSA in its current guise is a thing of the past. This year, probably. Next year, certainly. A few Cabin Crew look a bit miserable sometimes. So what?
excellent summation of BA's stance to date, I think.
BA have won so much already, whilst BASSA has failed to make any wins so far. This has never been about Union busting... and playing the long game is, as you point out, fiscally to BA's advantage.
Cant help but feel that ghastly behaviour by BA staff, such as the disgusting comparrison by BASSA to Jewish war dead can only be tolerated to a point by BA however... and they can easily change their course and issue 90 day notice for those still not on the new contract.... job done.
... the remaining BASSA members should think through their position very carefully IMHO, actions have consequencies...