You seem to assume that radiologists currently see patient scans too rarely to deliver accurate diagnosis. That seems very unfounded to me.

"More frequent scans per patient" != "More scans seen per clinician". You would just end up having to hire more clinicians.

(Yes, your family doctor might end up seeing more scans in this scheme, but it is implausible that they would be better at evaluating them than a trained radiologist, which is who this would almost surely be deferred to anyway.)