Ron Paul did great in that shouting match with Hannity, so it only works to his credit. The vast majority of the audience had tuned out by that time so it matters little, but Paul is a tough cookie and more than a match for the likes of Hannity.
My Tivo turned off before the video clip you posted so that's the first time I saw it. I notice that after the shocking (to them) lead of Ron Paul in the early returns of their texting poll, as I predicted in my podcast posted a few minutes after the debate was over, the powerful and well-funded political machines of the other candidates have kicked into gear and started flooding the texting line and pulled their candidates to be even with Ron Paul. Man, they are afraid of our guy and personally I enjoy that immensely.