When a golfer addresses the ball, arms extended, they’re identifying the bottom of their swing arc. If a backswing includes excessive lateral movement back, it changes the bottom of that swing arc. The player would then need to “time up” the lateral movement back to the ball, with the arm swing, and the body rotation. It makes consistency of the strike very difficult to achieve. Unless your hitting 1,000 balls a week, I’d recommend staying home where your address started and focusing on more stationary rotation rather than trying to time the lateral movement back to the bottom.