Dipper1945, I think you're wrong.

It appears that the WestJet Professional Flight Attendants Association (WPFAA) is a union, signing up members as a potential bargaining agent.

There is already a not-really-a-union organization in the picture. It's the group they aim to supplant: the Flight Attendant Association Board (FAAB), which is a subgroup of the larger not-a-union organization The Proactive Communication Team (PACT).

There was a similar PACT group in the background when the WestJet pilots unionized recently.

Sure it's not a CUPE, but there's no reason to think the  WPFAA isn't a real union.  I could be wrong but that's what a brief investigation shows.