There's no good reason to think that ME/CFS is a psychological, but the cause of ME/CFS hasn't been established yet, and it's worth being cautious with ny claims here given the way in which they're trying to attack us for being ideologically opposed to potential psychosocial models of illness.
But none of the researchers are arguing it is psychosomatic, just that psychological treatments may be beneficial to some and only because the fudged stats demonstrate it. Of course they are lying and have written extensively that they believe it is psychogenic. But they need to maintain the fiction that they acknowledge it is a genuine disease because they have done so in the past, which NICE sort of recognizes.
And they need that fiction to extend it to other chronic diseases. They want to show that the psychosocial model can work with MS, diabetes, IBS and chronic pain, none of which anyone is arguing is psychosomatic.
Blakemore actually said the quiet part loud. As he was head of the MRC he should not even be taking any position, otherwise it exposes his bias and conflict with this research. It doesn't really matter as long as there is suspension of disbelief but this was a pretty big blunder, like a judge being caught off-mic saying "the bastard is obviously guilty, I don't even need to see evidence" and adding some prejudicial slur.
And since they maintain the fiction of a
biopsychosocial model, they have to pay lip service to the biomedical research that has provided a huge body of evidence. Of what is unclear, but there is extensive evidence and they can't refute that. All the psychosocial research is arguing is that therapy and exercise may be beneficial to some. They say absolutely nothing about the mechanisms. Blakemore spoke of it being psychogenic. Huge blunder.