Yes! the guy's reaction is totally authentic. He had no idea we were coming, and he really got the order right (almost right). We couldn't believe it either, so we understand the questions.... ...
Added 09/24/2008 - a new cinematic showing Arthas being confronted by the forces of the Alliance and the Horde at Icecrown. The Forsaken show up to remind Arthas that they haven't forgiven him.