I hope that helps clarify!
Yes, thanks.
After also reading Michael Scott's article and the trial paper on CBT for people with depression and advanced cancer I think this is a trial that is specific for the situation in England, but it also raises highly relevant general questions regarding treatment of mental illness in people with severe co-morbidities -- as well as regarding psychological and emotional support for chronically ill people ("long term conditions") who don't have mental health issues.
I think the trial's findings might not be generalizable for other health care settings because the whole IAPT business seems to be built on wrong premises, hasn't been properly evaluated and maybe also the NICE recommendations (guidelines?) for depression are too undifferentiated for people with severe co-morbidities.
If I understood properly, the trial paper mainly wants to answer 2 questions:
1) Is the evidence for benefits from CBT for depression in people with cancer generalizable for advanced cancer?
The paper clearly says no, in the trial CBT didn't help patients with advanced cancer compared to treatment as usual. But the trial only investigated CBT provided through the IAPT program (with improved conditions)
2) Has the evidence for benefits from CBT for depression in (advanced) cancer generally been overestimated in previous studies?
The authors suggest that this is probably the case, and that this may be true for depression in other severe chronic illness too.
So yes, I can follow the reasoning that the trial adds evidence to the bad news that IAPT isn't helpful for (severe) chronic illness including "MUS" and ME, no matter how the latter are defined. And yes, a short introductorary re-cap of the most relevant already existing evidence what a mess IAPT actually is both for patients and therapists, would have been helpful for me (and probably boring for many others.)
Regarding MUS, I wasn't aware that there seems to be consensus that they all are associated with depression and anxiety or even to be just physical symptoms of depression and anxiety or interchangeable with the term functional/ psychosomatic/ bodily distress disorders or whatever interchangeable term.
While I realize that ME diagnosis and treatment in most countries is still being dominated by the view that ME is psychosomatic/ bodily distress, again I wasn't aware that there was a strong consensus that ME = MUS.
(Edited for clarity.)