I think it should not be controlled, but that professionals should be introduced to all aspects of psychedelics the same way they are introduced to psychology as a course, to obstetrics as a course, to all things that could be specialties but are part of core medicine. HOWEVER, I do not think psychology has matured enough yet to assess what is happening with psychedelics. What I mean is that there is no good widely accepted model of psychological action - there is only a receptor affinity abstraction to some brain mode, but this mode does not even have a page in any medical texts yet. i.e. what is normal and what is psychedelically extended BRAIN MODE WISE by having 5ht receptors engaged or blocked.
My theory is that 5ht receptor activation increases the sensitivity of cortical & pyramidal neurons and thereby extends the thalamo-cortical signal feedback beyond the normal 5 or 6 pulses creating more resonant and layered impressions - but this has not been examined using laboratory equipment.