I think the real problem in the US media is political bias. I think essentially the article is accusing the left leaning media of letting that bias color their views. Of course the article is equally guilty of that same thing. And I assume it does not see its own bias.

And sadly, the fact that the media is like this is largely a reflection of the population in general. And, as others point out, the media is probably like this because they are just chasing profit.