Zuckerberg is clearly talking about community and not governance.
Additionally, throwing around terms like "authoritarianism", "feudal" and "dictator" does nothing to engage Zuckerberg's points, or advance his own agenda. Rather, it simply clouds the conversation with personal assumptions, judgments, attacks, etc.
I'm old enough to remember when Bill Gates was depicted as a villain on a daily basis. This appears to have a similar tone.
Today, I'm not sure we could have a better fiduciary than Bill Gates through the Bill and Melinda Gates Foundation. Had he distributed ownership of Microsoft in a way similar to what the author suggests of Facebook the Global Community would have lost out, big league[0].
[0] NB: Trumpism intentional for the sake of humor.