From what I understand the newsmedia (NBC, I believe) incorrectly attributed Coulter's remarks as having slammed all the widows of 911. This brought her written statements to the forefront and she then verbally defended what she wrote (which by the way her statements about these professional victims may be sarcastic, but underlines the truth of what they are).
I seriously doubt that the "children" of these four tools of the looney-liberal-left were about to read Coulter's book. Those who choose to buy and read Coulter's book and who also tend to agree with her despite her dripping sarcasm have a legitimate right to do so without you attributing their actions as getting into the gutter. Coulter has a sarcastic combative style. She hasn't changed, only some Freepers opinions changed once Coulter criticized Bush.
Simple as that.
The comments Ann made on NBC are completely separate from what she wrote in her book.