It is very interesting but every single case of what these kids say are basically the same (at least what I have read). My guess is the facilliator is the same person and everything is coming from her/him.
The first time I read it around 20 years ago, I thought, you know maybe it’s real. The second time, I felt it was less real. The third time, no way. They can’t all be saying the same kind of talk. For example they all speak about the egel hazahov. Sorry, it’s impossible they all have the same manner of speaking.
So I don’t believe in it.