Baggersup
I agree that hitting Unite would be a bad move on BA's part. It seems that there is a lot of good will between the other Unite members and the company they are trying to save. I don't think BA leadership will risk angering the rest of the Unite members with legal action against the parent union.
I believe the public, especially the SLF like myself, will accept punitive action directed toward the two branches much better. I think anyone that has followed this at all knows where the real problem lies.