While he frames it in terms of being a good actor as opposed to making a profit, I can't fault him for this in what is essentially a PR post. At least it acknowledges common criticisms of Facebook's moderation, content policy, and editorial behavior, and displays an awareness that hurried knee-jerk hotfixes won't allay all concerns, but that they need a strategies to stay relevant.
I'm no fan of Facebook the product, or their business model being an elaborate data harvesting scheme, but place criticism where it's due, not on long-form PR blog posts that admit they fucked up a few times and they can do better -- even if they play up examples where FB being in the right place at the right time with the right marketshare has has helped people.