2600 Pacman sure does suck, but to be fair, that video was recorded on a potato at 14hz, making the flickering ghosts inscrutable instead of just annoying.
Here's one that seems to have been recorded at 60hz then downsampled to 30hz with frame interpolation for Youtube. Still shit, but at least you can tell what's going on. Kinda.
Think of it this way: you paid for a Kickstarter project to be delivered in 40 years time, got an early proof of concept showing game play and a nice display box, and the real thing was finished before those 40 years were up.
Just check out how the original Pacman port looked on the 2600: https://www.youtube.com/watch?v=HL2p2ANFlQ4