Actually, the underlined option doesn't use any pronouns. Your argument is pretty incorrect then. Unless you believe that Kakashi has the ability to fly, then free-fall was something he really didn't do on his own; it's called Gravity. He fell down at a high speed. That is all there is to it. It's elementary physics.
Kakashi is not fast at all. I will put Hebi Sasuke (the guy ran faster than the Detonation Speed of Deidara's C2 bomb explosion that was extremely large in size. That is insanely fast! Faster than anything Minato did in his life-time.), sick Itachi, Minato, Raikage without Raiton and Killer Bee without cloak. He is no where near their league.
Nice effort. But I don't agree with your thread at all, as it's based on a misinterpretation.