You can dress it up, but Facebook is a private website. They do fancy stuff with information they collect about you and use it to sell you ads. They have terms of service that define acceptable behavior, and they have no SLA / guarantee about what you share reaching others or what others share reaching you. That is the deal.
If you don't like the deal, Facebook is not a right, and you can choose to not use Facebook or not, depending on your morals.
Now, what the article described, "Facebook does not intend to suppress the posts itself. Instead, it would offer the software to enable a third party — in this case, most likely a partner Chinese company — to monitor popular stories and topics that bubble up as users share them across the social network, the people said. Facebook’s partner would then have full control to decide whether those posts should show up in users’ feeds." <- This is completely censorship. Governments censor.
Facebook saying it doesn't want a bunch of Macedonian fake news click bait stories crapping up it's platform is a business decision by a private company.