Seems OK but:
Basic Med form/exam close to identical to the Class 3 form. If you can honestly pass a Basic Med you should be able to pass a Class 3. Main difference to me is that, unlike the class 3 medical, if the physician can’t sign you off it doesn’t go to FAA for review.
Main problem is availability of physicians to sign you off for basic med. In the SF bay area the AOPA Basic Med physician finder lists 7 physicians for a population of approximately 5 million souls. Nine pop up but one a duplicate and one retired.
People say go to a DOT examiner but most of those are RN/PA and not state licensed physicians so no good for basic med.
I asked my AME why he did not do Basic Med and said that it was related to insurance since the liability profile (thus insurance cost) was very different between an AME and a physician signing off basic med. Perhaps because an AME is acting as an agent of the FAA and not really “your” physician. Also many large health systems do not allow their physicians to sign off Basic Med.