From what I remember of the commercial, when they throw the truck in reverse; you only see them backup for a VERY short period. When they do an overhead shot. It looks as if they are replaying the forward figure-8s; in REVERSE sequence. That is my take.
To the truck's benefit though, I have test driven it twice, and nearly bought one. IT IS PHENOMINAL as far as handling. However, I did not think the 6.0 had the power I wanted.