Richard and Rodgers (2001, p.7) say Grammar Translation " is a method for which there is no theory". Do you agree that Grammar Translation is a " theoryless' method? Why/why not?

Richard and Rodgers (2001, p.7) say Grammar Translation " is a method for which there is no theory". Do you agree that Grammar Translation is a " theoryless' method? Why/why not? Integrate all of the learning that has taken place in this topic and in this sense it will help you achieve all of the learning outcomes as you will need to draw on your knowledge and understanding of teaching principles and their implications for classroom practice.