No matter the martial art, having both legs off the ground is a taboo because power originates from the feet, and to generate Invention Power, the energy needs to flow upwards through the body in succession. Dark Force also requires the adjustment of muscles and bones through the shifting of one's center of gravity. Once both legs are off the ground, none of this is possible.
Moreover, there is no such thing as "lightness skills" that involve stepping on one foot with the other in this world. Once both feet are airborne, there is no way to change position in the air, turning one into a live target for others.
In a real fight, the fact that Gao Jianping was sent flying by Wu Li in just a moment, the one or two seconds it takes to fall to the ground were enough for Wu Li to have killed him several times over; thus, he immediately admitted his defeat.
"Is it over just like that?"
"Is there a master who can explain this to me,"
