The clean pull on to toes looked like a nightmare. Cant imagine a group of guys doing that one well. Also why do we have to always include an olympic lift variant in any discussion about training an athlete.
I thought that as well to be honest.
I think the exercise is supposed to do good but with a barbell won't get the best results. I think a heavy kettlebell can accomplish much more for the same movement.
But he said that he thought of this exercise watching Gerald Greene dunking, and noticing his feet pointing nearly vertically at the ground right before toe-off. He said he wanted to train that. Now those are good intentions but this exercise won't do the same thing. Coupling ankle extension with hip extension to lift a weight vertically makes no sense imo and is not similar to Gerald Greene's jump where he couples much more knee extension with his plantar flexion (and hip extension too).
It would make more sense to me if the forces were being delivered horizontally. But in that case he would have to be jumping forward or throwing the bar forward which also won't work that well.
Imo a much much better exercise for someone trying to work on toe off and hip explosiveness(apart from depth jumps, signle legged plyos, sprinting, and everything else that does that) are kettlebell broad jumps. It's much more specific and the toe off happens after the hips pass over the feet making it more like sprinting and the long jump. But that should only be performed by avishek-certified trainees because it is "dangerous."