It is relevant that they decided that reduced terms and conditions were an acceptable compromise to go back to their home country as an airbus captain.
I find it unacceptable that this union recommend strike action when these pilots signed the contract in the first place. You could castigate ( the pilots) for accepting this poor contract and thus ensuring future European bases will only be crewed by people willing to accept reduced terms and conditions.
Talk about shutting the stable door after the horse has bolted.