In the paragraphs you cite, their is an (quite ingenious and hard to notice) ambiguity, that leaves an open place for the exact opposite approach-
The historical problem is that the history of
medical science is littered with examples where it
was assumed that there was no physical cause for
a condition and where a physical cause for that
that condition has later been established
Why is this a problem?
When
they become alienated and resentful, they may
refuse to consider any psychological treatment
that may be proposed and even any possible contribution
of psychological factors to their illness.
In doing this, patients can deprive themselves of
potentially useful help.
This can easily be interpreted as-there is a significant psychological component to this illness, but patients refuse to accept it as they have become alienated and resentful.
The suggestion,
however, that CFS is a mental disorder is strongly
resisted by patients and is commonly regarded by
them as a clear instance of overpsychologizing.
This can easily be interpreted as-because of the way it is worded, the patients refuse to accept that their illness is a mental disorder.
The rest of what he is saying is quite obvious and as opposed to what it initially appears, has nothing to do with the question of CFS being a physical or mental illness.
The fact that certain diseases thought to be of psychological causes were found to be physiological, does not logically lead to the conclusion that
all diseases thought to be psychological are in fact physiological.
The fact that failing to recognize a serious illness and attributing it to psychological causes can lead to fatal errors is well known. Again, this does not logically lead to the conclusion that in
every case in which a psychological cause is thought to cause an illness, this is the case.
The dishonesty of the term "functional" is also well understood by the vast majority of those who use it. They use it for that exact reason. It enables them to say one thing to their colleagues and quite another to their patient.
Some of them may also be fooling themselves. And when this term will eventually be understood by patients, they will no doubt find a new one to replace it.
What you cite mostly says that patients with CFS are knowledgeable and sophisticated and can't be fooled like that. They know that many diseases were found to have a physiological origin, so think their disease will as well. They know that neglecting a serious illness and attributing it to emotional problems can be dangerous, so they are concerned this will happen to them. They realize that the only reason they are told they have mental problems is because no physiological cause has been found. It says nothing about the true origin of this specific illness.
It mostly discusses the emotional problems, which are the result of the way in which CFS patients are managed.
This emphatic approach and understanding of the emotional needs of the patients, superficially gives the impression that he agrees with what they think. When in fact no where is that mentioned.
There is a big difference between saying-I respect your need to see your illness as a real physiological condition, even though no such cause has been found yet. to saying- I have no doubt that your illness is a real physiological condition and every effort should be done to find its cause.
It's like the significant (and subtle) difference between saying- I respect your need to be seen as the prime minister and realize that I should say to you-yes prime minister when I talk to you (which can be said to a schizophrenic patient by an emphatic physician taking care of him), to- I know you are the prime minister and realize that I need to say to you- yes, prime minister when I talk to you (which is said to the prime minister).