I have no feeling one way or the other about Krauthammer’s punditry; sometimes I found him insightful, sometimes pedantic. So, not a fan.
That said, I can’t help but wonder if any pundit ever, be they on the left or on the right, would look competent after a partisan post-mortem such as you have delivered above.
Hindsight is always 20/20; opinions levied at the moment…..not so much.
Our lives consist of large bodies of work. Franz Joseph Haydn’s wrote 104 Symphonies. A dozen or so are commonly performed, perhaps two dozen are well known to professional musicians.
Why not all 104? Well, some of them aren’t very good. :-)