By "pixelated appearence" I mean the blockiness caused by seeing the black sides of each block when its a different height. The display is a bit like a minecraft map with the colouring only on one face of each cube.
I agree. The opening scene of the video and the shot at around 0:38 depict the typical angles and viewing distance from which most people will experience the sign. From these view points, the individual pixels are not readily apparent. But a two video from typical angles and distances would not be very interesting compared to close ups that show the mechanism in action and showing the mechanism is probably more suitable for a sales/marketing video.