This is a dangerous statement. You're basically telling people with mental illness that seeing a therapist is bad for them. My therapist told me "you are healing yourself, I'm just giving you ideas and suggestions and practices to think about, but it's up to you to decide if they're valuable for you". Many of the practices worked well for me. Some did not. But when I recovered from my ED it was ME that did the recovering, and when I thanked my therapist she said "no, it wasn't me that healed you, you healed yourself, you should be proud of yourself".