Two things. First, the network itself has been slowly drifting towards being more centrist. And, to be fair, they never actually said or implied they were the voice of liberalism or anything. They always touted themselves as being the voice of truth (in opposition to the lies and misinformation that others spread). It just so happens that the biggest spreader of misinformation was a giant conservative squawk box, so they basically became a liberal viewpoint by default.
Second, I'm pretty sure that the network has consistently put pressure on them to be more "even" in their coverage and viewpoints. Trump winning the election gives the powers that be more leverage to apply that pressure to them, whether it's fear of Trump's retaliation or just making some effort to appeal to other demographics.
And honestly, if you can't sell being anti-Trump/anti-neocon to the voters in enough capacity to get a positive result, I can see an argument being made that you shouldn't keep trying to do it to the viewers.
If they are anywhere near as tired as I am of dealing with this bullshit, I can honestly see them not burning the emotional energy required to get a head of steam going about this on a daily basis. Might as well just start learning to roll with it, at least for the time being.
