Thanks for your detailed answer, I really appreciate it. I have a blank transcript and was planning to send that as AMCAS says to report “any school you enrolled in at least one course.” Is that over reporting?
I don't know the nitty gritty procedural language about what you're supposed to report to AMCAS. Understanding the broad strokes made me feel confident that spending $10 to transmit a blank transcript at a school I ultimately did not attend would probably be unnecessary from AMCAS's point of view. I was verified and admitted to MD schools.
To be clear, the AAMC is very happy to accept all of the information you feed it. However, navigating bureaucracies like this, it is better to be judicious about what you choose to share. Be protective of your information; do not give more than what is asked for.
Here's a simple way this can go south: you submit this blank transcript and send your primary over to be verified. Someone at the verification office says, OK, this person reported a school but their official transcript is totally empty. They also do not see courses listed in your course list from that institution. Now they are flagging and holding your application to clarify with clearinghouses, institutions, maybe even ask you personally, etc. They move on to the next application and you're held in another queue for who knows how long. Your issue would be no problem at all, but there may be others in the queue who indeed have a lot of problems that require a lot of resources.
In bureaucracies, you think something that would take 10 minutes would be done immediately... however, when they choose to start is totally irrespective of that. Could be something they iron out right away, could be something they hold up for days, weeks, months. You just don't know, and nobody here can tell you for sure.
Comb through the AMCAS policies with a fine-toothed comb and see if you feel comfortable not reporting the school given your situation. I personally think you should be fine, but I'm just a guy on the internet.