Hows it going. In my opinion the sole fact that someone doesn't know a ground moves name does not mean that ground moves are not a part of freestyle. FREE style of football implies that one should not limit themselves simply to just 1 area, no matter how broad. What many freestylers seem to say is that: you are an air-mover if you do lowers only, ground-mover, if you do grounds only, lazy ass if you sit all the time, and a clown if you just do uppers? No matter what your speciality and preferences ( ! ) and style are, so long as you freestyle with a football, you are a football freestyler. It just so happens that ground-moves-freestylers are often streetsoccer players as well, hence the confusion, I guess.
In other words, grounds are a part of football FREEstyle.