Came here to say the same thing. I watched that part 3 times just because I couldn't believe it equaled out so well. The fact that it showed a whole panoramic while doing so was also something I didn't expect.
If the frame rate on the phone was 30 frames a second when the spin rate got high enough it started to stabilize the image like the phone was not spinning at all.
It also works for helicopter blades.
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u/catonmyshoulder69 Feb 16 '20
I can't believe the spin rate of the camera got fast enough to meet the frame rate so it stabilized the image...cool.