"Perhaps some new terminology for this kind of practice is needed, dare I suggest?"

shaman is the new terminology, actually. There are no traditional shamans anywhere in north or south america..there are currandero's, ayahuasqueros and heyoka's etc..

The word shaman comes from the siberian tradion..people like mercia eliade and michael harner took the word and made it into what is now the popular, culturally broad use of the term.

And most people that call themselves shamans that I have met IMO are full of shit..but there are alot of people here who do seem genuine in what they are doing.