They have never had credibility. A pack of charlatans, pure and simple.
When I worked for a large mortgage banker back in the 80s, all of the managers were mandated to go to a company designated psychologist to explore, discover, study and understand our "inner" selves. Some sort of liberal BS someone in corporate human relations/personnel thought up so we could become better managers.
From the first visit, I refused to answer the psychologist's very personal and probing questions about my life or cooperate in her tests and role-playing scenarios. I thought it laughable and a waste of time. She did not appreciate my refusal and defiance and tried to tie them to some deep-seated "mommy" issues from my childhood. That was laughable since my mom and dad always were close and got along fine. IOW, this sour-puss of a woman didn't have a clue what she was babbling on about.
I've never been one who spends time dwelling on my "inner" self. I've always been confident in who I am and knew that I was who I was. Deal with it. No amount of psychobabble would change that. What I did learn was that working for a big corporation was not for me.
I wasn't fired for not going along but I left the company a short time later to start my own company because I knew their approach to personnel management was not for me.
Today, at 71 years old, my instincts have proven correct. I never went to a psychologist again and have had a successful career and family life and I'm very happy in retirement.
Who needs the psychobabble-ists when you know your own self?