This is all you needed to say. I agree with this. He improperly accessed CASS and KCM, with the potential to jeopardize these security programs, which under 49 CFR 1544 is a disqualifying crime.

Falsifying his certificates is also a disqualified. Is the OP saying that he is grieving his termination to get retirement status? I'll bet AA/Eagle will ban him from their planes anyway.