"It means they're isolated, blind, and self-absorbed to an extent I never would have believed if they hadn't said so."
That comes from living in Manhattan and only working with, reading about, watching tv shows about, and living near people who think exactly like you do. Running every thought through a party-platform filter and squashing any independent though helps too.
You would think a major news organization would have people reading the important blogs. Nobody can know everything...or even most things...but it's a professional responsibility to at least try to avoid being blindsided by the obvious.
I'm just an old guy living in an isolated community. But I read The Daily Kos and the Agonist as well as FR and Powerline. That a major new org doesn't do even that boggles my mind.