That video was on the 2nd highest difficulty? Because the AI cars did almost nothing in the way of defending passes...they literally held their line and let the player make his pass.
Hoping that's something not yet finished before the game comes out, because I also am looking forward to the game. Even if it's just to run laps at a track before the real race, last years game was fun, but lacking in many areas. Have to wait and see what improvements actually make it's way in this year.