It is, it was a bit terse, you're right.

A potential fantastic use of AI is to scan a person's medical records against the vast medical knowledge humans have gathered over the past century or so to help doctors identify problems quicker and with more accuracy.

While the general purpose AI's we use today can't be trusted to diagnose anything (but I'd argue they can assist a competent doctor) a future specific purpose AI that's tailored to that task could revolutionize diagnosis. And with the rate AI is going (even if people like Sam Altman are stretching truths) it's not a too distant future.