Maybe some simple math could help paint the "new ski design vs. BNG dilemma" in a different light.
Suppose there are six different ski design aspects that significantly affect how a ski will perform - for example, Bevels, Rocker, Perimeter (shape), Wrap material, Core material, and Tunnel configuration. Further assume each aspect has six distinctly different forms - for example, Flat bottom, partial concave Tunnel, full-concave Tunnel, concave-with-rails Tunnel, variable-width Tunnel, and V-stepped Tunnel. So for this thought experiment there are only six design aspects to consider, and each aspect has only six possible configurations The total number of possible iterations of your new ski would be 6! (six factorial), which is 6x5x4x3x2, which equals 720.
So there would be 720 different possible forms of your new ski - IF there were only six design aspects to consider. In reality, there are many more to consider, AND there are all kinds of hybrid forms of each aspect. There literally is not enough time in one ski designer's entire lifetime to try every combination possible, which means there may very well be MANY design changes yet to come in the impossible quest to find the "perfect" ski.
See, I told you the math would be simple.