Why is that? IANAPhysician, but this seems like a fairly rare malady in this age group. Do we really want all of these people rushing to the hospital? If no one trusts the Apple Watch's diagnosis, how useful could it be?
You're unlikely to get rushed to the hospital due to your watch asking you if you're OK while you're consciously engaged in strenuous activity. It's a sign, not a diagnosis.
I think the rate is low enough that most people are not getting multiple spurious notifications to rush to the hospital, so trust is probably not the issue. The only problem I see is hospitals being overwhelmed, but again, I'm not sure if we're really overloading them.
Sure, most people are not going to hospital at the suggestion of their Apple watch. However, of those who do go to hospital, nearly all are false positives. This will lead hospital staff to distrust the Apple watch. It may not have that effect on Apple watch owners...
The fact that the baseline rate is so low is why this sort of widespread testing isn't really helpful, and can do more harm than good. The wider the net you cast, and the more rare the target condition, the lest useful the test becomes.
