I am enthusiastic about the advancement of research in this area and frustrated that it was delayed for so long due to political reasons, but please keep in mind that people with mood disorders or trauma can be desperate and may not make the best choices for themselves on their own.
Your final sentence also rings true for any remedy including SSRIs which many people have been harmed by, likewise your pointing out to this research not advancing due to political reasons - including system and regulatory capture - can be applied to existing treatments that were approved but perhaps should not have been; the conspiracy hypothesis that's becoming mainstream is that things like MDMA, psychedelics et al, were suppressed by for-profit industrial complexes via "the war on drugs" because pharma's patented daily-use recurring business model products couldn't compete with the very cheap to make, administer "2-3 times per year" chemicals that don't have anything close to the same "side" effect profile.
You can see how this regulatory capture still has a hold in Canada for the alcohol industry, where alcohol's a known carcinogen, and as a society we put warnings on tobacco products but no such warnings on alcohol - and this isn't the only incongruence in Canadian policy/culture.
MAPS.org did clinical trials, MDMA-assisted psychotherapy for veterans with treatment resistant PTSD, to great success.