Psychology "knows" that people don't enter treatment until things are really bad, and then they get better - no matter what treatment is provided. Finding treatment that is better than others is the important part and they also know they are not very good at that.
> and then they get better - no matter what treatment is provided
I don't know what experience of therapy you've had in the past, but this is typically not how it works. People get better when a treatment is applied that is suitable to them as a person and the context, not sure where you'd get the whole "people get better no matter what treatment is applied", haven't been true in my experience.