Wouldn't citing actual cases be a HIPAA violation? I can see why they would invent example cases, based on real ones, especially if they are fairly pedestrian cases.
I mean. Except if your pedestrian example does not reflect reality, then that is bad.
It's a privacy violation to reveal information that identifies the patient. It is not a violation (and is extremely common) to recount details without noting names, places, or even dates. Unless you already have access to a database of records you won't be able to track it down.
It's even common during talks to display diagnostic images that have had any identifying marks redacted.
HIPAA is American, not Canadian.