I think that’s the normal shutdown order to reduce shock, the timing was exactly the expected second stage shutoff time if I understood it correctly.
One of the three sea level engines went out and stayed out. It didn’t look normal. The numbers stopped updating with one engine still on.
Incorrect it failed asymmetricaly in such a way that would pitch the vehicle in circles. Normally the sea level raptors are turned off and the space raptors are slowly brought down together.