Ben's theory sounds most probable.
Also some of the shots are shot in the flyer, which in itself is providing the change of perspective as well as the motion..
edit... this is his post in one of his other video...
"no (dolly)
description in a nutshell:
Single-shot (stop Motion), the order is: the place from where the filming should ideally be flat and preferably with the tile (as it is convenient to measure at regular intervals between the frames and follow the exact trajectory), it is best to shoot from a tripod with ball head. more important to aim accurately in each frame (you must choose on a subject component, which is stable and not moving nothing overlaps and will not be lost) by aiming layfviyu and 10x. the horizon is also important to watch, of course, need a remote control with timer. Well then necessarily stabilizing in AE. (Google Translator)"
AE refers to Adobe After Effects.