In almost all sites ive developped for my clients customizer had no use and so i disabled It by preventing clients user role from accesing It. This plugin may be helpful for devs who give their clients access to administrator role although the name is a bad idea. Still, thank you for the plugin.

As for the argument on whether the creation of the plugin was a good idea or not i think It was. It is a yet another option in making wordpress turn into a more useful and user friendly system for some specific projects and use cases. Not every project even requires menus or posts!