Trust me it's not as easy as the video makes it look. I think the trick stick is pretty worthless, unless you are a kid in Portugal trying to make a FIFA '11 highlight montage goal while playing on Amateur. On most difficulty levels even attempting the trick stick automatically begins the defender tap-away animation and you lose the ball. The system doesn't feel organic...if there's say, 10 trick moves available at a given moment, if you try 9 of them at that moment it's an instant disposession by the defender, and only the 1 that the game engine deems "appropriate" for that moment will work.
In other words, AI defenders react to your button input, not the ball. It just doesn't feel correct.