alt Hacker NewsThe AMA may cause some problems but you can't reasonably blame them for this one. They are not a regulatory or accreditation body. State medical boards control provider certification. Some universities have combined BS / MD programs that cut education time down to 6 years.
Doctors are motivated, intelligent and sometimes self-interested. By no means are all of them against it but like any party there are plenty who unabashedly oppose increased accessibility to their profession in favor of increasing their own value/pay.