Why would the providers need to buy statistics on their customers? They already know who is listening to and watching what content.
There is no way to opt out of that practice as it is included in most contracts by default.
T-mobile has a setting where you can turn it off and on
Setting up these methods are also not trivial for companies.
Setting up adaptive streaming based on bandwidth available has been a solved problem since RealVideo in the late 90s. All providers do it now. Anyone can set this up with WireCast.
The selection process is hidden (there is no information available), looking at the participating services most probably don't bother either due to cost, restrictions or administrative reasons.
Every streaming provider in the US took advantage of it.
Streaming your own library is excluded in the contract, so it is not music, only what T-Mobile says is music. I call that censorship.
You can stream your own audio through Apple Music through the Music Match (?) Service.
This is all really a moot point now that T-mobile only sells unlimited plans now and if you really want to opt out of compressed video you can pay $10 more.
Wireless is different, no matter how much money a wireless carrier is willing to spend, there is a finite limit of how much data can be transferred through the air and only a limited amount of spectrum that is good for cellular service.
The video/music producer can opt out and be treated like all other data and watch their customers prefer providers who went through the trouble of filling out some paperwork or they can be on the same level playing field as their competitors.
". In comparison, the countries with prevalent zero rating practices from their wireless carriers consistently saw data prices increase. This makes sense; carriers have an incentive to raise the costs of exploring alternatives in order to make their preferred, zero-rated choice of content more attractive."
Did you even RTFA or did you came here to defend TMobile.