Bad feelings can sometimes be caused by bad behavior. In spaghettifier’s case the therapist suggested some new behavior to help change spaghettifier’s thoughts.
You can be anxious because you were abused as a child, or you can be anxious because you always cheat on your wife. In the latter case, I don’t think the cheater will feel better about himself unless he changes his behavior. Nor do I think he should feel good about himself unless he changes his behavior.
I think you’re assuming Spaghettifier knows what’s best for himself, and I’m assuming he doesn’t. It’s possible that Spaghettifier is dealing with a problem so stigmatizing that he can’t find anyone to validate his feelings regarding the problem. And that once he sits for several sessions with a therapist who validates his feelings that his problem will go away.
But we don’t know if that’s true. What we do know is that Spaghettifier went to one therapist who thought he needed use more CBT techniques, and Spaghettifrier thought this therapist was too judgmental. We don’t know the thoughts he was dealing with, or why he went to therapy.
It’s possible there is more to the story that Spaghettifrier is leaving out and that I"m dead wrong. But from what I’ve read it looks like Spaghettifrier is closing off all criticism of his behavior, which can prevent him from getting better in certain cases.