I am going to guess that they weren't happy with themselves (not their placement per se), I saw their Sunday morning performance and it was a hot mess! (sorry, but that is the truth) They should've stayed on stage as instructed, I seriously doubt they conspired to leave the stage ahead of time if they didn't place well, maybe they misunderstood or didn't hear the instruction. I saw many teams walk away without banners and trophies all day as the announcer or staff chased them down with it. I wouldn't jump to the conclusion that those teams didn't want their awards. I think the kids just get caught up in the moment, good and bad.