I haven’t re-watched these vids yet, but I don’t remember him ever advocating rapid full rudder usage, with rapid reversals of rudder input.
As far as I and many others are concerned, that FO panicked and over-reacted with the rudder. However, we all learned as a result of that accident that the rudder was never designed for that sort of rapid back and forth use, even well below Maneuvering speed.
Overall, that program was a huge asset to us.