This is all legit, what is is doing and trying to do.... I used to respect him a lot.
I have read his book, and watched the film "Social network", all seemed rosy and nice... until.......
The Facebook grew so big, it started to influenced huge masses of people, so Government (US gov in this case) had to step in. Gov regulates a lot decisions when it comes to what content publishing techniques FB should and could use. Also the whole monetisation process was the most tricky part to FB, and when investors invested money into FB, and became shareholders.... this is a clear signal, that FB is not the same "community service" anymore. it is all about ROI to shareholders and profits. So all this talking about: being better to communities etc, doesn't make a sense in my opinion. I find those stories like: broadcasting crimes live, or bullying and broadcasting it on FB live.... just disgusting!
Like I mentioned: FB was nice idea, with good execution, but money (shares) made it very very toxic product.