Professors are supposed to present the conclusions they've come to from their studies and work with no "self-awareness" filtering to avoid hurting anybody's feelings. Doubly so in an article, which is not a scholarly paper, and is meant to represent a broader picture with broader strokes.
And being a professor is not about only presenting raw factoids. It's also about drawing conclusions from the data and pointing to the bigger picture the way you interpret them -- a bigger picture that no data are going to give you by themselves alone. Informing the public opinion is not about being a glorified statistician.
Of course nobody would have batted an eye if a processor had done exactly the same kind of "stating of facts" for opinions they like (and that goes for "righteous indignation" both sides, left and right).
And being a professor is not about only presenting raw factoids. It's also about drawing conclusions from the data and pointing to the bigger picture the way you interpret them -- a bigger picture that no data are going to give you by themselves alone. Informing the public opinion is not about being a glorified statistician.
Of course nobody would have batted an eye if a processor had done exactly the same kind of "stating of facts" for opinions they like (and that goes for "righteous indignation" both sides, left and right).