Quoted from the opinion piece you cited: "it's simply a fact that a number of negative things happened in Trump's opening 100 days". If the Soviet Union had had a free press in the 1940's how much of their coverage of Stalin, do you suppose, would have been negative? Should a leader who is bad by most objective measures still get 50% positive press coverage? Should a leader who is good by most objective measures get 50% bad coverage, simply for the sake of "balance"? Or as the study authors said, "Never in the nation's history has the country had a president with so little fidelity to the facts, so little appreciation for the dignity of the presidential office, and so little understanding of the underpinnings of democracy."
If Russia is such "fake news" and a "dead horse" why then did Trump, in a news conference today, say, "I think it was Russia", "I think it could very well have been Russia", and "it was Russia", when asked to definitively say whether he thought Russia was responsible for election interference? If Trump himself says he believes it, is it still "fake news"? If it is not "fake news", what does that say about the president's attempts to sway his supporters' opinion with lies and misdirection? And if still "fake news", what does that say about the president's ability to discern truth from lies?
You do realize that Joe Scarborough and Mika Brzezinski were early Trump supporters, yes? They began to make fair criticisms of Trump, such as the botched rollout of his first travel ban or the failed Obamacare repeal bill. Trump, being incapable of handling criticism, lashed out the only way he knows how, with angry tweets.