I think we need to not do `as: ''`.  This works now (obviously) but has two things that don't sit well.  (1) the path helper doesn't obviously tell you what controller it references and (2) if we decide to add normal restful routes for these resources in the future, the blank `as:` will cause those route helpers to be bad, e.g. if we changed to `resources :users, only: [:new]` instead of getting a `users_new` route helper we'd get a `new` helper which isn't what we want.