There is a variety of reasons show stops can be called especially during a stunt show like this due to the high risk nature of them. This show stop was caused by a safety concern with some of the the show equipment causing the show to stop and be cancelled. They then proceeded to perform these dives for everyone in the audience as the show could not continue.
3:56 .. you know what they should do right - they should make it so that door in front of you swings open, and like, an animatronic Viking pops out, laughs at you, squirts you with a water pistol thing, THEN you drop down backwards. I swear I come up with all the best ideas the parks don't think of!
