I was with it right down to near the bottom where the author suggests people try it out using an LLM. Hmm, LLMs fall for cargo cults and I'm not sure they are to be trusted with even the most trivial self-help.
Yes I'm really not sure obsessive patterns of behaviour will be helped by an unqualified stochastic parrot giving you advice. Unfortunately, when treatment for conditions in some countries costs you an arm and a leg people will resort to quackery. But even in countries where it doesn't, the waiting list for therapy can be so long that you could be waiting years if your case isn't somehow life threatening or profoundly limiting you won't be a high priority.