RHC was talking of an approach to learn about hand usage, and then using the lower body to support that hand usage. That is not what we see here. What we see here is a lower body pivot. Since the upper body is incorrect here, this would not be "Pivot the Swing". If it works for you, then that's fine. When I work on the pivot I like to see it performed so as to be supportive of a good swing.
You see no hand pivot? No hand pivot would be what Tewks is doing. just a body turn, with locked up hands