It was so painful to read that I had to give up, but from experience this isn't particularly rare; these dudes are typically so busy that they're hammering out missives like this as quickly as possible, no time to proof read or grammar check. Speed of response and communicating the core concepts is paramount.
This image http://www.willchatham.com/wp-content/uploads/2014/01/net.pn... has been making the rounds on reddit, surprised it hasn't appeared here yet. This is the most visceral/succinct explanation of the consequences of allowing the ISPs to have a "fast lane"...
I don't think FB is dumb, but I do fear that they are highly amoral with respect to personal privacy... And a VR screen glued to your face is getting pretty damn personal. I feel uneasy about a guy who calls his users "dumb fucks" for trusting him to be in charge of that.