I've played with panorama mode and tried both of these (1 - panorama of moving train passing platform, 2 - panorama out window of a moving train)

...and both got the same weird artifacts, as it piled "similar" slices together then jumbled up "complex" slices.

Too bad they can't have a toggle for time-slice based panorama vs scene-based panorama. or maybe turn on accelerometer optimizations or not.