Hi Nder, The N players constantly moving on the wings replicates shifting the ball out wide in attacking build-ups in a real game situation.
Using the width is important and effective in build-up play as it draws the opposition out wide, opening up channels for players to run and pass into.
Additionally, using the wings allows crosses to be put into the box, creates variety with the attacking play, and allows possession to be more secure by opening up space for the attacking team, instead of trying to build up an attack by playing into congested areas.

