It seems to me on the contrary, if the rates can be done absolutely for everything, both for sports and for cyber sport, then the project will gain popularity. After all, it is much more convenient to carry out all bets in one place.
You are right! RACE protocol can be adjusted to any type of bets. And currently we implemented betting on crypto coins/tokens. But there is no problem to generalize and make it more abstract to be able to use for betting on any type of entity.