Many of the concepts and mind experiments have some validity in theory, but you need to hear it from the unfiltered point of view to truly appreciate the delusion and how they have taken things way too far.
Yes, writing things down makes it more likely you will follow up. Yes, things can go viral and impact thoughts of the public (Shamanism IS a valid social construct) by appealing to the lowest common denominator. No, this is NOT magic. It is sociology and anthropology, and they are treating it like magic.
I do wish the film makers had done some research on the concepts that this movement have bastardized and presented it as some counterpoint. I also get the impression that the film maker allowed the "guests" to dictate the terms. I don't feel this removes the importance or relevance of the content, but it absolutely could have been done better.