of Witz off the field you mean? I will ask my friend. Not sure how much interaction she had with him.
I met all of the USA team's dogs and know some more personally than just the WUSV so I can give some more insight there. The winner, Henk, appeared to be one heck of a stable dog also. He was in the very chaotic parade where I first met him. After he ran his last routine, he was also taken into the stands where people were coming up to pet him and congratulate the handler.