This is really happening? The dude. Has. No. Legs. Having no legs as a runner seems like a distinct disadvantage. The dude is literally missing roughly 50% of the muscle groups necessary for everybody else to run and his "spring loaded magic legs" are somehow an advantage? GTFO. There is no robotic mechanism involved, there are no hydraulics involved. They are there for balance FFS. You want a case study into the advantages of running without legs? He is literally one in millions with prostheses who have made the cut into the Olympics. There. No. Advantage.
This is not even close to a debate. This is absurdity masquerading as a debate.