Very cool. Hopefully they'll come up with a way of stabilizing the camera
They would have to keep the rocket from spinning, and that is something very hard to do. Fin alignment, surface finish and surface contour has to be pretty much perfect.
It's also possible they spun the rocket on purpose. That's done sometimes for stabilization, makes it fly straighter.
Though at the Mach 3 plus speed it was moving, doubtful it was spun on purpose.