I don't really have an opinion, CC skiing is not my passion and if there are "classic enthusiasts" then I can understand why they would want to preserve its tradition and legacy.
But sports are changing and evolving all the time.
In ski jumping, even into my early adulthood, skiers were penalized for not using the "classic" style which is called parallel. Ultimately the new V-style took over as skiers realized that the distances they could attain by abandoning the parallel style far outweighed the penalties levied by judges for not "looking right." The new V-style is also safer which is an added benefit.
That's one major and fairly recent example, but obviously the technology (and mankind's ability to build more advanced structures and playing fields) has changed numerous other sports over the decades.