As a BASSA official,
PiB will be fine.
The rest of BA cabin crew will lose their jobs and livelihoods, but PiB and his ilk will be just fine.
From the
link in post 879:
It seems that UK law has focused much more on protecting the organisers of industrial action from legal liability and less on the individual worker for whom there is no regime of statutory immunity. Therefore the freedom to take industrial action is undermined completely as the individual worker will jeopardise the continuation of his or her employment.
If you are BA cabin crew and would like an independent assessment of your rights in case of a strike, please read this: link