What Milton Erickson did, by the way, was to create a formalized description of a whole bunch of natural techniques of influencing and persuading people that orators, leaders, and entertainers in every known civilization have used for thousands of years. It's not the exclusive property of the community of therapists, it's something that was being used long before modern psychotherapy even existed.

These therapists have just rediscovered the water pump, the egg, breathing techniques, and how to start fires, and they are under the impression that they have discovered something brand new that belongs to them alone! What hubris on their part. ;-D

Hell, people were doing all that stuff 5,000 years ago. It didn't get invented by Milton Erickson.