In fact the article strikes me as more of the same reason why so many voted for Trump. The people who write these articles just can't accept the idea that people didn't vote for Trump unless they were tricked into it, or were fed lies. The idea that because they have a different reality they based their votes on never occurred to them.
What fake news do is reinoforce what people already believe to be true which is quite another discussion and anyone who have been debating with some 9/11 truther knows that no amount of data will convince them of anything else and neither are you going to be convinced it's suddenly true even though we all have been bombarded with claims from friends.
Also maybe my facebook feed is different, maybe my friends are different but I had and still have plenty of disagreement in my feed plenty of articles pointing both ways.
Here is a good example from my feed.
Basically a four year old history surfaces which is wrong and look at the articles underneath.
I have seen plenty of examples of that. But maybe my feed is unique.