I can honestly say that I have seen more kids out at fields trying to emulate some of the stuff in Nike commercials than emulate actual game play.
I think it brings a little pizzaz to the sport and in the US it will create a larger following. Furthermore it only makes the players better (control, body discipline, confidence, skilled, etc.) this translates to better soccer on the field in regular play. You may not be able to make the moves in regular play, but your first touch, speed of play and foot quickness certainly have improved and can only make the game better.
I know the kids go home and try to this. I do not think they were doing it before.
So in a weird sort of way... thank you Nike.
The Ronaldinho commercial were they go back and forth to his childhood is excellent.