You're assuming DK is planned for USH at all
I think this show is great for the park - a small-footprint, high capacity, high tech attraction, plus another show in a park that is constantly losing them, is great. I'd prefer another IP as well, but the show seems good enough that I don't really mind; after all, nobody sees Waterworld because they were such big fans of the movie. DK, on the other hand, is another big land for one attraction, something that I don't think would suit this park at all