Except that he wrecks his own antiauthoritarian point when he says:
In some cases I might disagree with our style book. I obey it nonetheless, because rulings, even when arbitrary, keep a style consistent, so readers aren’t finding “Web sites” here and “websites” there in the same article. Readers expect and enjoy uniformity as a mark of quality.
Well, duh. Which is why style guides and dictionaries exist and are adhered to, so all his snarking about “the dictionary” is really kind of pointless, except to vent wounded authorial feelings.