Agreed. Plus, I think he's way off base when he says that syntax highlighting is equivalent to emphasizing certain parts of speech in traditional prose. It's not. The prose equivalent of not including syntax highliting would be not including and paragraphs, capital letters, commas, apostrophes, periods, bold, italics, or underlines. You're left with something that contains the same information, but is harder to understand.

Also, it bugs me when people try to compare code and prose. Just because they're both typed as text using keys on a keyboard doesn't mean they're in any way related. Calling them analogous is like trying to compare building a house and buying a car. Yeah, they're both life investments, but that doesn't mean you use any of the same strategies between them. Money aside, they're unrelated.