Adhominem writes:

Well, that could also be interpreted as supporting the medicals: After all,
medical incapacitation isn't a leading cause of aviation accidents, so the
medicals must be doing a good job of preventing
medical-incapacitation-caused accidents.

We need data on the frequency of medical incapacitation accidents in the
absence of medicals in order to really be able to make a point either way.

We can get those numbers from automobile accidents. How many accidents are
caused by sudden incapacitation of automobile drivers? How many are caused by
drivers having a sudden heart attack or seizure?