Interesting articles. Think back to history class about the rise of specialization, trades, and guilds in Middle Ages. Psychotherapy is a powerful industry and getting stronger due to lobbying and health care.
Is that good or bad, who knows? But combine that role specialization with the fact that humans have narrative bias, confirmation bias, aversion to admitting sunk costs. So they are inclined to justify time and expense of their own therapy.
For example I had a sweet moment connecting with a new acquaintance that I ATTRIBUTE to my having had therapy (e.g.,learning about being vulnerable). So I'd be one of those people in a survey saying therapy helped me. But is it TRUE??