Well, they didn't hire Okrent to see to it there's no bias - they hired him to try to insure the Times gets at least a few of its' facts straight!
And on this point, he's got it right: the NYT IS biased.
There's no need for them to apologize for that, just like there's no need for me to EVER buy or read their paper.
Don't buy it, but keep up with what they're printing. It's very important for the "know your enemies" section.