They're not pushing people to their partners. If you have high bandwidth demands they want you on a business plan, which this guy had, then he switched to a consumer plan to save money, and violated their ToS.
Verizon isn't going to stop people who are hosting a personal site (although they block port 80). They aren't going after people hosting a few friends on a game server. But their ToS do permit them to cancel your service if you are hosting a server, and they use this for people abusing the service, like this guy. Their ToS also prevents you from hosting your own ISP on their consumer line or anything like that.
And look at what this guy did, 50TB for multiple months, then he hit 77TB, and that's when they finally called him on it. If their "unlimited" plan (not that they market it as such) goes up into the 10's of TB, is that really a problem?