There's some commentary here that's helpful, and some that's not. I don't think it's fair to say "Facebook sux lolz" when many of us work, have worked, or will work in companies that suck just as much if not more. Plus, this is just one engineer focused on a certain set of tools and products. Lee does not represent the history of Facebook's decisions. He is not Mark Zuckerberg.
It's totally fair to say, "thanks rich pplz, wut do WE do?" Though there's a ton of "rich pplz" out there that don't let engineers experiment the way that Facebook does. Perhaps Google. But the vast majority of these don't, I don't think: