I cannot say 100% that you both will end up in a long AP. From watching the forums over the years it is a very likely scenario. You should browse the other forums of the banned countries to see what is happening. If they are just on hold or outright denied. I don't think they would be outright denied, but I'm just guessing.
Mam is being cautious with recommending delaying the interview, and avoiding re-entry permit. Applying for re-entry is the right way to go, and what it is meant for, but I do want to add to be careful with that as Montreal is a stickler for domicile. If they think you have not really moved to establish domicile they could deny the visa for your wife.