The W stands for weather, not humidity.Maybe we need to call these shower rooms damp locations and get WR receptacles and covers....
You can ask the petitioner. His proposal was rejected.A restroom is a stupid place to locate an electric panel, but what danger does it create that it needs to be banned?
But if the definition of damp location includes "some" basements (humidity), Shirley it should include shower rooms..The W stands for weather, not humidity.