I don't know of any other place that has this "outlets within X inches of counter edge" requirement, or really any accessibility requirement imposed in a blanket fashion on residential construction. Since that means most accessibility builds and mods are custom by nature, there is no market for standard components for most things. Tubs and showers are the main thing I can think of off the top of my head.

There are plenty of narrower countertops, and plenty of kitchen systems with e.g. suitable corner cabinets that would make the countertop narrow enough in the corner to fit the requirements. This is only a problem because they have chosen or want a solution that have painted them into a corner without thinking about the requirements.

The requirements may not be entirely well thought through, but complying with those two is not difficult.