Rated, i think it’s you and knobbycobby who need to be careful. Especially any suggestion that training and checking pilots at Qantas should be failing people for industrial reasons (see knobby’s post above). Such behaviour would be illegal and would expose someone to serious repercussions.
Your suggestions that he somehow didn’t do a good job aren’t supported by the evidence - the most important piece being the overwhelming support for the main eba negotiated during his tenure and subsequent popularity of the 787.
And such things absolutely have happened before. Going from aipa President to chief pilot is a far more powerful position. The chief pilot has much more sway over negotiations than any company negotiator.