More importantly is the fact she points out what should be obvious to all. She concludes her post,
If a university official's letter accusing a speaker of having a proclivity to commit speech crimes before she's given the speech -- which then leads to Facebook postings demanding that Ann Coulter be hurt, a massive riot and a police-ordered cancellation of the speech -- is not hate speech, then there is no such thing as hate speech.The definition of hate speech is that anyone who says things that causes one group of people or individuals to act in a violent manner against another group of people or individuals.
So she points out what should be obvious to all. A university official's letter causes a massive amount of violence towards Ann Coulter. Therefore, by definition, the letter is hate speech. Funny how these things only work one way.