Reverts f73d8e6d49. While there are other ways to achieve some of the same end results, this code existed in the code base for 8 months without issues and is included in the official docs. This means that there could be devs that are depending on this behavior. Additionally, while this may make the internal logic to the BackendController class more complex, it simplifies the developer experience by bringing the Backend\Classes\Controller base class more in line with the standard Laravel controller class.