Listening to it again, it sounds like background music for a Jeopardy! commercial, or one of the brief ads they do between the end of Double and Final J! It's catchy, but I agree a little out of place as think music. I think if they remove the percussion and synthesized 1/16 notes, it sounds more suitable here.
I may be in the minority, but being already like the main theme, it's growing on me more as a potential replacement for if/when they ever decide to update, even if it's not as fast-paced.