This attack on Ann over one line in an entire book is a typical leftist tactic. Take one phrase, out of context, and repeat it over and claim it's the main point of the whole book. It was one throwaway line (that should have been thrown away) at the end of a couple of paragraphs exposing the jersey girls for the media whores they are. The left hasn't said anything else about the book, since the vast majority of the book is a documented expose of a wide variety of leftist lies and beliefs.
i think much of it has to do with the fact that the rest of the arguments in her book are solid. they were searching for a way to make the "soccer moms" that Ann talks about in some of her books, How To Talk to a Liberal, for instance, perk up and say "That is so wrong!" as they watched the biased media relating half-quotes.
just my 2 cents.