That may well be what happened, but I did have 2 long and heated conversations with the parent company, one of them with the insurance company conferenced in. I got the impression from them that there were models that would have been under whatever “secret threshold” there was, but they preferred to sell the better models, and have the client pay the difference. As I mentioned, they even offered one of the lower end models.
When I went in, I specifically told the clinic the coverage was for “approved devices from an in-network provider” and that was what I needed. You could be right, but I really suspect it was bait and switch, along with puppy dog sale (take him home, see if you like him). It’s probably worth mentioning that the clinic told me that the parent company has changed hands several times in the past 6 years.