Normally I'd agree with you, but Facebook have absolutely been positioning itself as a news source. They even publicly talk/gloat (as they should) about how Facebook was used to disseminate information during the Arab Spring.

So they really can't have it both ways. If they want to be a source of news, they're going to get flack if they hide stories, even if it was done by an algorithm.

And all of us here know that Facebook is a private company and they can do anything they want, but for the majority of people that use the Internet, Facebook and Google are the Internet to them. So for a lot of people, this feels like Facebook is "censoring the Internet."