Short answer-No.
Also, realize that all of their measurements are meaningless. In that video, they take angle measurements off random youtube videos with the camera at all sorts of different angles. If the camera isn’t 90deg to the person running, you can’t take 2d angle measurements like they are doing. They do the same thing with the other measurements. For measuring “bounce” they zoom in on the heavy bounce runner to artificially get a larger differential. Also, you can’t measure bounce on youtube videos as you have no reference point to caliberate what an inch is.
So all the measurements are useless, but the reasoning is also flawed. They are just trying to sell a product…