A graph that shows a company "only" makes $5 annually for every user aren't exactly laughable when you have over 1 Billion users, yet the article, in an awfully hand-wavy fashion, brushes over this on its way to concluding that "Facebook hasn't changed much since its founding" (it's "hard to argue," see).

Anybody who dismisses Facebook as a website where you can stalk your college friends would obviously be bearish on Facebook. If you think Graph Search is "just another way to sort your news feeds," then of course you wouldn't expect Facebook to grow. If you don't even mention the fact that Facebook is a platform that is interwoven with every part of the Internet, I wouldn't expect you to understand how Facebook will make money.