As the BA pilot who was furthest through the sytstem for a while, I can tell you that no one is at threat for their jobs (at least at the moment). While the policy could certainly do with improvement, and has made me pretty angry at times, BA have kept their word and no one has gone into stage 3, despite making the triggers. Stage 4 is the one to worry about.
Every body else is in it, no one has yet been sacked, so what is the great worry.
BASSA have most definitely lied to you in the latest communication, so who do you trust?
I can assure you that I don't trust management, but BASSA take the biscuit. When will you guys realise they are harming you, rather than defending you?
3000 odd supporting a strike is hardly a great worry.