Good point Rated D.
This was mentioned on Qrewroom. An AIPA executive with legal qualifications(but no substantial legal practice) was quick to dismiss them as being legally unenforceable. But then so was a former AIPA president who jumped ship and became Deputy Chief pilot.
Someone did make valid comment that despite it potentially having no legal enforcement it would make a moral and ethical statement formal leaving no doubt given the history that has not served AIPA well.
In fact many governments and corporations have non complete periods.
“You have nothing to fear if you have nothing to hide” seems appropriate