The pressure from the DfT and MCA on the management to come to a speedy conclusion of this debacle will be a major factor - this isn't a factory making stuff, it is a national UK rescue service that can't afford to be offline or people will die.
No-one, even the greediest management, wants that outcome because the ensuing public enquiry will ask very pointed questions and some people might face allegations of corporate manslaughter.
When I arrived in Aberdeen in 1990 I was directed to the local library by a captain who had been involved in the 1977 strike. There was a government white paper (?) report there. Maybe wrong term, but the inquiry report from the Scottish sheriff. It struck me immediately at the time that that document should be compulsory reading for any Bristow or BALPA management in the future! A catalogue of miscommunication and egos, internally and externally.