I did not read the study so I don't know if you're referencing a specific claim in it, but I do not understand your comment. What does being immoral have to do with TFA?
This is making the claim that psychedelics are making people more spiritual, that these are spiritual awakenings. Morality and spiritually are intrinsically linked. There is also a flaw in the research when they only ask the participants how they feel and do no outside measurements.