As the wife of a Canadian citizen, I do know that almost always Canadians do not receive I-94s which means they never "fall out of status" and it is a very well known loophole and after doing a great deal of research. You can be banned but they have to prove when you fell out of status and you have to prove you weren't out of status (good luck with no written proof) You are correct BUT I would still talk to my lawyer if I were you because every single case is different and no one here can tell you the answers to your questions, we aren't lawyers or USCIS employees.
I am waiting for AP myself and my lawyer was going to bat for me today and tomorrow so we will know something soon if we will have AP when it is needed. If not, then there is nothing we can do because our situation is an emergency but not a life threatening emergency we will have to wait it out but on day 91 we will be trying infopass, nothing to lose by going to talk to them, and I plan to ask if namecheck cleared as well lol.
Don't get upset with the people you feel are drilling you here, you are new and until you get to know people it sometimes comes off that way but they are just trying to get a feel for your situation.
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Since they never issued an I-94, they will not accrue illegal presence if they go beyond 6 months. It is a well know loophole. To accrue illegal presence, one needs an expired I-94. Canadians usually do not get I-94s.