The video was slam cut together to avoid continuity problems. There was a lot of fast camera motion and unconnected scenes.

Particularly bad was the snowmobile sequence. It was literally a different snowmobile in every cut.

The racing pool duck scene was a different pool in every shot.

About the only consistent thing was the faces that were spliced into the scenes.

I do not really see anything super significant in the demo. It looks like this suffers from all the same problems of AI generated video. They just hid it by avoiding more then 5 seconds in the same setting.