I rewound to check, and Dan Potter actually completely forgot to ask if the corps was ready. He just launched right into starting them off and the DM never had a chance to salute.
It's still a curious choice to have the one guard soloist behind the brass finish after the music has ended, but at least the rest of the guard ends much more uniformly. It reads much better.
Wonder if it might be worth it to look into skipping THEIR ticket insurance and getting another third party insurer like Allianz or something—maybe those others might have a better policy.