If a company respects what athletes are asking for in a ski's performance, then involves them in the product's development & then has the balls to also sell that exact same product to you, you will be buying the same ski as the athlete in the stores and the ski will be likely further ahead of it's time due to the athlete likely being ahead of where most consumers are in their abilities and vision. That's the way it always was with Line. That was the simple yet ballsey formula the lead to often being too ahead of our time and selling fewer skis until the customers finally saw what the pros were doing and then wanted to be able to do the same, thus needed the same product.
There are other companies just make a ski with no athlete influence and tell the athlete ride this and deal with it or find another sponsor.
If a company feels that athletes are requesting things that the public does not need or want or believe they just can't sell like a super long, super stiff, or super soft or super wide ski then they'll just build a few custom skis for only the athlete with the same graphic you see in the store and you and the athlete are riding 2 totally different skis.
The only other time athletes ride different ski with the graphic in stores is when developing a new product for the future. While Wallisch is developing his new Booner pro model skis, the ski will be totally new yet the graphic will be the same as an existing model so in photos and vids he's promoting a ski that's actually available in stores. No point promoting a product that doesn't exist is how companies see it.