I'm going to have to disagree with your point about a park being dedicated to one sport being better. Firstly, I work at COC and we host a snowboard and a ski camp and it's nothing to do with more money, absolutely nothing. Why would we not want to let our friends who ski/snowboard, ride the park with us? We're a "park" camp so if you ski or snowboard and want to ride park, we cater to you.
Secondly, ski resorts don't build their parks for just one sport, so can you honestly say that the HCSC snowboard park is better than any winter resort's terrain park that caters to both? The snowboard pros that ride our park, like it better than HCSC, so I can tell you with absolute certainty that a one sport specific park does not result in a better park product.
On another point, sure skiers generally prefer jumps with more pop, but I also have snowboard friends who prefer floater jumps, and others who prefer tombstones. So is it sport specific, or is it just personal preference? Either way, the more diverse features you ride, the better skier/rider you become.
Does this mean it's wrong to only cater to one sport? Not at all, some just have more class or a better sense of humor than others. Still, it's a lame ad, but it's even lamer that we brig anymore attention to it. Better to just let it go the way of the mono-ski.