I did see the video yesterday and wanted to post my thoughts but couldn't convey it. The 3D is a bit off since everything except the starfield move the same speed when panning.
If the ship is panning, The starfield is fine. I think the objects that is the closest to you would pan faster than the object that is further away when you're moving.
If your ship was rotating on an axis, then the starfield would have to pan faster than the objects closer to the ship.
It's not real 3D only pseudo-3D to convey a nice playing illusion while not exceeding Intellivision speed.