unfortunately they do use CBT in cancer/similar, to supposedly "cure" the fatigue of such diseases, and to pretend to "boost" the immune system through "positive thinking" which is for some inane reason (read: really bad methods and wishful thinking) thought to improve chance of survival.
It's not only us. It's really dismal critical thinking skills, terrible methods, and a failed peer review process.
The difference in us is that we have few people to stand up for us, and virtually no one to say "how silly; that's an actual important disease and can't be cured by happy thoughts and unicorns".