I read it some years ago and found it insightful and plausible and fun to read, but couldn’t wrap my mind around it forming a coherent theory. And form my recollection, many things in there confirm Johnstone and complement it, esp. the high-status aspects. There may be more.
You might want to have a look at the
The Collected Papers of Milton H. Erickson on Hypnosis Vol 1 - The Nature of Hypnosis and Suggestion
I read it some years ago and found it insightful and plausible and fun to read, but couldn’t wrap my mind around it forming a coherent theory. And form my recollection, many things in there confirm Johnstone and complement it, esp. the high-status aspects. There may be more.