First with the issue of rhythm.
The Jets offense had none in 2011. We saw it so often, and too often. Offensive play is at its best when it gets into a really good rhythm. Similarly to baseball pitching. Have you ever noticed that when a pitcher is going really well, he doesn’t have the baseball in his hand for a very long time? He doesn’t screw around behind the pitching mound, play with his hand, he doesn’t do any of that. He gets the ball, and throws it.
Same thing with an offense. The whistle blows, the offense gets the play, and they get to the line. This is what the Jets are preaching. The offense can only benefit from doing more to establish a rhythm.
Secondly, it keeps the defense on its heels.
If the offense is getting to the line of scrimmage quickly, it limits the possibilites for defensive substitutions. That can lead to advantageous matchups for the offense, such as linebackers on wide receivers, passing defenses in on running downs….etc. Always a positive to have the wrong guys in.