Also, Dustin Curtis seems to forget (or not understand) that Facebook is the same company that made a decision to implement AJAX at the expense of pageviews, at a time when that decision was highly controversial (the era of the Empire of MySpace). You can ding the management at Facebook for a lot of things, but this really isn't one of them.
The bigger story, really, is that poor people use Facebook on a computer, and thus that is where web-based experience optimization is focused. If you don't have a smartphone, or your smartphone sucks, you're going to be on the web; otherwise, why aren't you using your iPhone or iPad? (And remember, that's where Facebook derives a majority of their revenue -- so if there's going to be a conspiracy, it's going to be a conspiracy to get you to stop using the website, and to buy a high-ad-revenue-generating iPhone). Welcome to the wacky user landscape of 2014, where the Web is for nerds and poor people.
I like that Julie used Medium for her thoughts, rather than a Facebook post. Experimentation with others' products and services is super cool.