One provision I really like in this proposal was not mentioned in the article writeup.
(c) DISCRIMINATION OF CONTENT. A covered Internet service provider may not, for purposes of measuring data usage or otherwise, provide preferential treatment of data that is based on the source or the content of the data.
As I read this, it would effectively outlaw attempts to count OTT content against the cap while exempting ISP content. In other words, the capping ISP would have to count bits for their own video product exactly the same way they do Netflix content.
I see this as aimed at Comcast trying to pretend their IP video shouldn't count while Netflix & Amazon Prime content should. Also, I think it would outlaw the latest notion of AT&T to extort protection money from content providers by ensuring that the "protected" content wouldn't count against the cap.