Great Post, Hodini! I love how your posts keep us aware to not become too cultish or manipulative and stay critical about how the idea is getting applied and distributed.
I agree with Plum. Although I get where this guy is coming from, I believe he applies it in a way that is more harmful than good to the idea that it is just a way of the body saying no. Making such claims as that you will get better permanently and that there is no possibility of relapse is just an example. He does it to increase the chance of success, but I feel he should be just frank and open about what he does and how it works according to his ideas.
One of the things that stands out for me in general is that people who suffer from CFS can react very aggressively when they get confronted with the idea that there may be a psychological driver of it all. I believe they either got confronted with it too many times as many doctors and laymen will tell them that is their first hunch, or they share some traits that makes their brain feel very threatened about it. Meanwhile medical doctors still don't have a clue about what it is and what sets it off. But my hat falls off when I see people claiming that CFS can be either psychogenic or real. What?? People who get better apparently suffered from the psychogenic variant and people who don't get better suffer from real CFS...?? Is that scientific evidence then?? I believe not. I hope the studies that Schubiner et al. are conducting right now will give doctors new tools to separate between mindbody and genuine conditions.
There are in my mind two drivers of mindbody symptoms:
1) stress about the mindbody symptoms (vicious cycle)
2) personal stressors; stuff that your brain interprets as dangerous. These stressors can be around all the time or can have a more episodical character, which also explains why some people suffer from TMS chronically and others episodically.
For some people resolving the stress about the symptoms is enough but for others it isn't as they either don't acknowledge, recognize or accept the stressors and why they are susceptible to them. [edit: or they do but are unable to change how they react to the stressors. Some people with other mindbody conditions also encounter this.] As science has no better explanation for stuff like CFS yet, this is my best explanation for why some people recovered and others didn't. It isn't scientific evidence either, but when you don't have any evidence at all, stick to the most straightforward theory. For me that is TMS.
enough rambling for a Saturday, cheers!