Ava,
If you knew you had to rely on staff travel to come to work, then after reading and digesting both BAs offer and Bassa's missives (in my view, less than informative propaganda) and having to try to make an informed decision, surely you must have asked the question of yourself...."Do I feel strongly enough about the issue (issues?) we are about to go on strike for, to forego my staff travel? Yes or no?" If the answer was, "Yes", then you really do have to possess sufficient personal accountability to accept the consequences.
However, you are right, it may not be all over; there may be a slim chance it will be returned - albeit with revised seniority at the moment (which I know you intimated was insufficient
), provided the Bassa community shows a modicum of common sense and accepts BAs offer this time.
You have a window of opportunity - please don't waste it.