I will check out that book, thanks. But the history of the web shows how an open network killed the content silos of AOL, Prodigy, Compuserve, etc. Yes, now things seem to be swinging back, perhaps due to the popularity of mobile apps and poor user experience of the mobile web.
I believe this is the primary driver. We already have Facebook introducting "free limited Internet" to developing regions of India [0] and mobile carriers in the U.S. already allow certain apps to be excluded from data usage. The open Internet is not a guarantee, and the next generation of web users may not know the 'wild west' we did.
Facebook free zones are just ad supported ISPs, like NetZero of years ago. Until they actually block non-FB content, it is just grousing about gratis, not libre.