For the average person paying 60 bucks a month for internet today while only using Facebook, Twitter, Gmail, and Netflix, this sounds like a great deal.
It's coming too, because it is a great deal for ISPs (more money! Huge kickbacks for the senior management!), and a great deal for megacorp incumbent media companies who don't have to worry about any of those pesky upstarts screwing up their monopolistic business models. No more Netflix like services appearing and eating your lunch, you can effectively cut them off at the ISP.
This puts say, Hacker News, in a very bad position.
As well as any new startup that wants to compete against the major players with billions of dollars.
Already there are people strong-armed into AT&T's DirecTV Now, which is zero-rated on AT&T's wireless network. With the pitiful bandwidth caps on mobile data, how can Netflix possibly compete with that?