Doctors in control regularly shut down any attempts at increasing this limit.
Medical education is very hands on unlike engineering where we just throw people in the deep end at work. This is with good reason.
I'm absolutely for having more doctors and medical school seats but I think it's important to acknowledge that it maynot be as simple as increasing seats. There needs to be more fundamental reforms. That being said yes there are completely pricks of doctors who enter politics.
Maybe medical school itself needs to change to make the role easier and split the functions into easier ones that more people can do.
After I finished grad school (electrophysiology and imaging in large animal models, so seemingly relevant experience), I thought about becoming a clinician. However, I wasn't even eligible to apply to med school because it had been 5 years since I took an introductory biology or physics class (with lab!). It seems I was qualified enough to teach in a medical school but not to be a student.
A faster scientist -> practitioner pathway would be such an obvious win-win: it'd help with the overcrowded academic job market AND relieve clinical shortages, but most of the emphasis seems to be on getting MDs into research instead.
If we increase number of admissions, then long-term doctors should become less overworked. That's a path to fix it.