I feel a very small group of companies are pushing an incredibly wasteful business model, because they aren't the ones paying for all of the waste. Google, Netflix, Spotify, etc. would rather you wirelessly stream content that makes... a lot more sense to store locally. And they're pushing things like streaming 4K... even when the cost/benefit of streaming 4K to a phone is questionable at best.
We're all paying for the extreme network contention of 90% of available bandwidth going to these very wasteful business models. It's pretty unsurprising ISPs would like to charge extra for them, either towards consumers or the streaming providers themselves.