Or to help ourselves see that? I think it would be a mistake if everyone who read this assumed it was simply a problem with the other side (“See, I told you they were all idiots”). Nate Silver has made a good case that the media's focus on the Comey letter non-story was one of the main factors for Clinton's loss, and it's hard to not see a connection between their refusal to look at their own reporting and their sudden focus on "fake news." Just this week I ran into an NPR fact checker claiming "It’s true that an immigrant can sponsor extended family members for visas"[1] (in context, talking about immigration visas), when that seems to not be the case at all[2].
It's true that shoddy journalism is different from intentional manipulation, but the line between the two is often blurred. You also have the same issue with both - even when people are presented by the facts, they won't reconsider their positions. I've run into this issue in the past - when you present the original source and show how it contradicts a news report, it's not uncommon to get the reply "that can't be true, or else the media would have said so."
[1] https://www.npr.org/2018/01/30/580378279/trumps-state-of-the... [2] https://www.uscis.gov/family/family-us-citizens