This seems to be the central dispute. Facebook promotes the opinions of friends and family over articles on nytimes.com. I don't think nytimes would care so much but for the fact that so many people are in fact paying more attention to the opinions of friends and family. More than just the lost advertising revenue, this is an existential issue for nytimes and similar content creators.
Zuckerberg seems to realize this, given the comment about public funding, but that is just an unrealistic throwaway line in the current moment. I don't much like the idea that you can make billions by destroying the support for a pillar of civilization and then say that's not your problem to solve.
Not a lot of "opinion" fits in there, that I can see. Though of course it's nearly impossible for humans, even journalists, to be opinion-free.
Is the purpose of news and journalism to establish what happened?
Or why it happened?
Or what's likely to happen next because it happened?
Or what's important to pay attention to in the first place?