When Sea World rehabbed the waterfront area, did they move the bridge that leads to Shamu Stadium? It appears they did on park maps, but haven't been to check it out since the construction finished (in the last year or two).
One impact of the reconfiguration is that due to the proximity of the bridge to the area where the fireworks are set, the entire bridge is shut down in the evenings before Mystify, which makes it harder to get from the Shamu Stadium back to the waterfront -- or the exit, for that matter.