Game consoles have lots of other details to worry about like the background (this demo is just an empty black background), NPCs and everything they need to do, game logic, physics, etc
The number of layers and weights is really not at a scale we can handle updating manually, and even if we could the downstream effects of modifying weights are way too hard to manage. Say you are updating the picture to be better at orange, but unless you can monitor all the other colours for correctness at the same time you probably are creating issues for other colours without realizing it
