While the notion that "stand and loose" was important in war seems sensible to me, the implication that mobility and shooting speed were irrelevant does not. Be

While the notion that "stand and loose" was important in war seems sensible to me, the implication that mobility and shooting speed were irrelevant does not. Being able too shoot fast seems like an immensely useful skill when confronting a mass of enemies that move, have armor and actively try to avoid getting shot. More shots per minute would mean more chance to actually inflict damage. Also, what about smaller confrontations that did not involve a wall of charging cavalry/footmen? While the acrobatics is silly, what this guy is doing is impressive and indicate skills that could be applied more broadly.