Yeah, he is trying to catch up with what is the trend shaping social media today as he realizes that there's no place for censorship in a free society. Social media have been widely used by governments around the world as a tool to suppress freedom of speech and expression. His today's speech nailed it.

I think Zuck is following the wind. Elon and Trump have been very clear and bold on their views. Tech lords have to align with their Landlord, if you know what I mean.