As someone who doesn't care all that much about that particular press bias, what bothered me far more about the column was that for Cohen the Sage of Wasilla appears on the scene "With her selection as John McCain’s running mate" and that, at the end, "Sarah Palin changed the game." That's wrong. Sarah Palin didn't change anything. There have always been unqualified presidential and vice-presidential candidates out there. Hundreds of millions of them, in fact. What changed (if anything did; I'm not as sure about that) was that John McCain selected her, without having bothered to find out whether she was a qualified candidate or not. The passive "with her selection" will not do.
What happened in 2008 was that John McCain chose someone who should not have been on a national ticket; that Republicans of all stripes pretended he hadn't done that through election day; and that all too many Republicans defended the choice not with the white lie of claiming her competence, but by declaring that her apparent weaknesses were actually strengths, thus setting the party up to reward such weaknesses in the future.
Palin is, of course, responsible for her own actions. But no more than that. Her selection in the first place, and the way she was defended before and especially after the election, isn't her doing, and John McCain and various high-visibility Republicans are the ones who deserve the blame for it.
At any rate: nice catch!
*UPDATE and mainly CORRECTION: Very sloppy on my part; I assumed that the post was by Ed Kilgore, regular WaMo blogger, but it was in fact by Paul Glastris, occasional WaMo blog contributor (and Editor in Chief of the Washington Monthly). My apologies to everyone.