He started talking about the retraction early on, then we track of that for a while. I'd like to see him demo this on a less stylized punch. Kote gaeshi doesn't require that full commitment of weight forward, but not having it changes the dynamics of the throw.Ok first I am well aware that it still dojo set up and it not a boxer (DB I know what ya gonna say lol) however when I was looking around you tube I came across this, It is still Kotegaeshi just not the flowery one and there is an entry for the retracted punch ( DB it not a boxer lol) anyway may explain there is more than one way to apply the principle.