It can be both. And really, if that's his argument, then he needs to take it up with the World DanceSport Federation. From my understanding, the IOC is kinda like the Unicode Consortium—their job is not to codify some alphabet, it's to take an already defined, used, and supported encoding, and bring it into the fold. The IOC doesn't make up what the sports are, they take sports that are already judged at the world level, and put them into the Olympics.