Thanks for this Alex, very exciting stuff for the medical field. A friend on mine is involved with the psychiatric & psychology academic community in NYC and he told me that use of psychedelics in treatment is something they have a great interest in. There was even a gathering of people interested in some of the under the table use of ibogaine for heroin addiction.
I actually do suspect that if we want to see a paradigm shift this is where it might happen - people actually dealing with human beings are more amenable to invoking spirituality if it helps rather than letting people suffer for the sake of materialistic abstraction.
Of course the science seems to be clearly in favor of utilizing psychedelics no matter how one feels about the entities. But there's good reason to at least suspect there's more to it than brain chemicals -
Strassman himself has proposed a theoneurological model in which the Numinous/Phenomenal communicates to the material via DMT.
Hancock has put together some interesting research, though I wish he'd have concentrated more on the commonalities of experience rather than - IMO - jumping the gun and trying to come up with a definitive model for what's happening. That said, Supernatural is worth a look just for the side-by-side comparison of psychedelic visions, UFO abductions, and shamanic metaphysics.
ps. For advice on use check out How to Use Psychedelics:
http://howtousepsychedelics.org/
and
Neurosoup:
http://www.neurosoup.com/