I also believe that ISPs need to manage the customer’s WiFi most of the time, because it is a is huge part of the end-user’s quality of experience. WiFi 6E will go a long way towards reducing interference and channel congestion and making “auto channel” actually work, but will still be another 2-3 years before it is really common.
Fiber optic networks operated in a competent way are always going to win compared to any other technology. It is just a matter of time.