Not really. There are many terminations around the industry and there is no way you can cover every circumstance in a CBA, nor would you want to try. Yet the system board of adjustment does have a fairly labor friendly track record of getting pilot's jobs back with full seniority and back pay even in grey area cases. Not all, of course, as some terminations are so cut and dry the company, union and system board all agree they were warranted.
But to say a termination has to violate a specific part of a CBA is incorrect. There is far more to it than that, and the system board of adjustment gets to hear all cases, regardless of what's in the CBA, and then they make their decision.
As for the pilot who said he was terminated, most unions have a probationary period that I assume you would have been in given your longevity. Probationary pilots are typically not entitled to the system board process. You can still file suit for wrongful termination, as always. The act is not always easy to proove, but the dammages usually are.
So if we do vote in a union, I don't see much of an ability to lobby the system board for the reinstatement of what would have been a probationary new hire, retroactively to when the pilot group was non union anyway. That being said, it couldn't hurt to present your case and see what they say.
On the subject, I hope we can avoid a probationary period. I always thought it was rediculous that after all the background checks and hoops we have to jump through that we, as professional pilots, would have to serve any time, much less an entire year. on probation as if we had done something wrong. I don't consider that "paying your dues" I consider it stupid, demeaning and something we need to work to get rid of.