Rights are normally associated with responsibilities. The CC's right to strike should surely be associated with the responsibility of only doing so if absolutely necessary and not just to "give Willie Walsh a message".
Other staff in the company surely have a right to expect that their colleagues do not jeopardise everyone's job who works for BA without good cause, particularly when they have done what was asked of them to help the company survive and prosper. Something that BASSA/Unite only recently accepted was necessary after months of "negotiation"ie saying no not us, we're so special