I don't think we have to think of it as a binary opinion. The Association of American Medical Colleges (AAMC) realizes that the supply of doctors is an issue - but anyone can already start a medical school (California Northstate, for example).
And to address your point about "awful doctors", people are also starting to realize the shortcomings of the previous system - filtering too heavily on test scores/grades, for example, meant that many medical schools churned out graduates with great test scores but relatively poor interpersonal skills (which is a travesty since you're dealing with people all day) for a while. Nothing is changing overnight, of course, so the jury is still out in how things will be in the next few decades.
And to address your point about "awful doctors", people are also starting to realize the shortcomings of the previous system - filtering too heavily on test scores/grades, for example, meant that many medical schools churned out graduates with great test scores but relatively poor interpersonal skills (which is a travesty since you're dealing with people all day) for a while. Nothing is changing overnight, of course, so the jury is still out in how things will be in the next few decades.