[skwb]

I don't even think it's about the ethics that necessarily make this statement wrong (though, you are correct in that HN needs to consider basic ethics on a much more frequent basis).

In the case of these detections, the ground truth can be very subjective and is certainly not a simple explanation. Is the ground truth read by a radiologist? A radiologist with fellowship training? Multiple radiologists? Biopsied? Followed for 5 years to see if the patient actually died of their tumor?

The complexity is a lot more than the underlying algorithms and computer science (though they are important!).