After watching it a good 50 times, I think it is indeed a new rotation.
Here's my take. In a normal, uncorked rotation, the axis you spin around is changing. It starts as the red line on the left side of my diagram. It then rotates to the left, and should be perpendicular to the landing upon landing. In the orbital rotation, however, it appears that Sammy rotates solely around a vertical line - see the right side of my diagram. This makes the rotation look almost like a flatspin/rodeo.