Pretty sure I was paying around $100/hr when I did it years ago, so those prices aren’t insane. The dude coaching was someone with obvious ADHD who (like a lot of us) probably had an easier time communicating what should be done than doing it himself. He definitely was no therapist.
But it added accountability and validation (or challenge, if needed), and he was trained in various organizational techniques. And since he was also ADHD he could speak from experience. My understanding from him was it was pretty common for the coaches to be ADHD people who’d gotten training and certification as a side gig.
I know nothing at all of Shimmer, but it sounds like a remote version of that than anything meant to be therapeutic per se. This is more like the training you should get after the meds start to work but you still don’t have good habits.