I predict this whole thing will be a nothingburger, and in a year there will be no major ISPs seriously trying to sell "Netflix/YouTube packages" or the like. If I'm wrong, I'll eat crow, but I seriously doubt it.
This effectively allows the ISP to sell their one pipe to the internet twice. They can go to YouTube and Netflix and say, "You haven't paid us to send your content down your pipes." Meanwhile saying to the consumer "You need to pay us so you can get access to the internet."
So, some ISP's will still allow access to the internet. While others will allow access, to what I call, the interNOT.
Edited to add:
I suspect that someday someone will come up with some legislation that says if you don't have access to the full internet, then an ISP can't call it "internet service". Because it's not.
The business model is already proven, the American ISPs just need to copy it. It would not surprise me to know that they have systems and plans hiding in the wings.