We're not recording reality, but we're trying to create convincing and aesthetically pleasing effects for brains that evolved in reality.

The point is that if a pixel is in a nonsensical place the only thing that is to blame for that is the code. It doesn't matter if it looks pleasing; there's no good reason for something to be wrong just because it looks acceptable.

If you can't even guarantee internally consistent state then good luck communicating your "convincing and aesthetically pleasing effapt update && apt upgradeects" successfully.