We cannot see beyond a choice we do not understand. Often the gold at the end of the rainbow is ill-defined or treated as if it's not a need-to-know by the instructor or methodologist. That's why we move from method to method. I have often felt that students and instructors are co-conspirators in the never ending search. There is a limited supply of answers, because there is a limited demand for them.
There may seem like there are an infinite number of questions in TGM, but for each question there is an answer. A reason. It is not a dogmatic embrace of an opinion or anecdotal experience. The pot of gold is precisely striking the ball with an economy of effort and a wealth of result.
I like TGM because you can see the end, when you begin. The path is set before you. It's a choice you can see beyond.