I guess the real reason for the scents is that when some balls are being drilled, they stink. The storm scent will overpower the original scent, making it more pleasant for the ball driller.
Also, once when I was in Vegas, a storm ball rep was in the pro shop at the Orleans. This was when the scents first came out, and I asked him why scented bowling balls? He replied comically by saying that when the owner of Storm gave his wife a tour of the ball manufacturing process she said that it stunk and tada a scented bowling ball.