I don't think a ride of this type of limited IP appeal (outside of grand opening season) would ever command large numbers of people in a standard queue. After the initial newness wears off, I wouldn't think the 4 minute C+ or D ticket level ride segment alone would attract Despicable Me, or Soarin, level crowds. This set up though, entertainment shows (like my Poseidon example) gives you a fairly large captive audience for a 30 minute period. People are going to attend this as much for the entertainment value of the two levels as for the 4 minutes of the ride. It's the Totality of the Experience that will get people to do this attraction. That's what makes this different than a traditional queue.