What ban? It isn’t the pilots who’ve left that’s funny, it’s all those who have joined training during the ban and refused to leave the AOA and we can’t throw them out.
And everyone turns a blind eye to it. I’d suggest more people have left the AOA in protest to people breaking the ban and remaining in the AOA than have left the AOA to join training.
If you can’t be forced out then why bother resigning, you get to have your cake and eat it too. I’ve lost track of how many new trainers have told me it’s not a ban it’s a choice.