I don't see a huge problem here.
AFAIK Bonza has been recruiting for the OOL base to replace the Canadians when they get their next planes.
Also Bonza has talked about, in the future, sending Bonza jets to fly in Canada in peak season over there, so presumably opportunities for Australian pilots there.
For those with long memories, in 1989, the Hawke Labor government approved many foreign carriers to fly domestically. It took 5 minutes to approve it when it suited their political agenda.