Two vectors of legal risk appear: one from teachers, who are now segmented into A and B, where A can test and B cannot (and take umbrage); one from students who are owed accommodations that require presenting exams in non-standard formats, and whose professors may have used Canvas to provide necessary accommodations. I’m not positioned to assess the statistical validity of either risk, but it only took a few seconds to find them in the scenario, and if nothing else I assume the university tends to promote cowardice re: legal risk.