AV F, I don't disagree with you, this is why I said BA, by continuing to negotiate, may have handed BASSA enough rope to hang themselves. BA seem happy to play a long game, which would presumably be on legally safer ground, if it came to law in the end.
If bookings were being affected, BA might want to speed the 'game' up, but they don't seem to be.
The long game also reduces their 'bad guy' image with crew, who BA still have to work with in the long run. It's a 'hearts and minds' thing, at the start, BASSA had the advantage, but it's losing credibility, it's better in the long run for CC to lose faith in BASSA because of BASSA's own actions, rather than BA making a martyr of BASSA.