Good article. I felt like I was in the room. I studied at HMI many, many years ago, back when the founder, John Kappas, was still teaching.
It's probably wise to point out that hypnosis, or, any form of hyper suggestibility is a natural process that we all go through quite often. There's nothing mystical about it. There's no feeling to it, no magic. It just is.
If you've ever been caught up in the thrill of an action movie or reacted to the romance or sadness in a drama then you know what it's like to be hypnotized. You've willingly suspended a fraction of your mind that knows its just a picture of actors playing a scene.
A trained hypnotist understands how to convince a subject to willingly suspend certain processes and then plants suggestions either directly or indirectly. It can be a great tool for some for many purposes.
But, the bottom line is that it takes cooperation from the subject for it to work. No one will do anything by suggestion they really do not want to do.