I am not sure if the response a formal one, but from the snippet I heard it sounded like they have made one. Of course, included in the response was the demand that the site be taken down and the threat of a lawsuit.
On the flipside of this, the group that operates this site has asked students to take notes and secretly tape classes of any professors who could make it to their list.
The professors themselves are screaming that this is a form of "McCarthyism" and that they are scapegoats. All in all, I think the site has most certainly had its desired effect, whether it is taken down or not. Imagine an army of students taking notes and taping professors' rants so they may be published on this or future websites and blogs.
It brings a smile to my face :)....