As far as the armor goes, I am dubious of someone wearing true full plate being able to sprint and bounce around like those fellas did. Sure, they were not stuck in slow motion, but there was an impact to mobility. When I was in the Army I could distinctly recall being significantly hindered in full MOPP gear plus Kevlar vest, plus load bearing gear plus weapons. I was never in the best of shape, but good enough for Army standards. I am willing to bet that my accumulated gear weighed significantly less than full plate. Plus, I recall reading many books about knights and distinctly recall some mentioning the difficulty in gaining ones feet after being knocked down. I really wish I could reference specific titles! Perhaps this information IS out of date but it does not mean knights in full plate could sprint and bounce. I would love if you guys could reference your sources. I would love to read them!
As far as the melee goes, I have two points. First, the melee consisted of knights fighting knights. Not knights and their men-at-arms fighting knight and their men-at-arms. Each knight was a part of a team an few likely contributed towards victory via their skill of leadership. Second, while the knights were sorted into teams, the goal of most knights was to make money by capturing other knights and thus gaining ransom, armor, weapons, horses. The video posted was purely a team sport. There were no individual incentives that got in the way of pure teamwork. I imagine that a true melee, as I understand melees, involved some teamwork (not leadership work) and some questionable moves that focused on ensuring I would get a good haul for my efforts.
