Look, we're going to be brutally honest right here: we see absolutely nothing wrong with this design. Is it abrasive? Sure. Is it colorful ad nauseam? Perhaps it is. Is it kind of weird to model a bathroom after a 1950s diner aesthetic? Yes, it is weird, and it does cross a certain taboo, conceptually meshing together eating and relieving yourself. A taboo that should usually never be broken. Usually.
We're not quite sure what the deal is with this bathroom, but somehow it makes it all work. If we were to go to a bar and see this, we would be totally delighted.