mad power right there
The problem is, the only way this could be effective is if he actually attempted to lower the weight under control. He's skipping that part, the only part that could be effective, entirely!
There could be benefit even without his positive part, and, in fact, he could even be using that "swing" to prop the weight up for effective negatives. You can lower much more weight than you can lift up, as JimmyJam1974 pointed out, it's physics, BUT this fellow could have still made it productive and skipped that part!
By the way, anyone, how do you post videos?
How do you post pictures?
Thanks in advance.