Yes, in theory you are right. However, the algorithms used for it (T Perm and J Perm at the least) are much more complicated than algorithms used by the Beginner's Method. Moreover, understanding how the use the method to solve the cube is a really frustrating phase not everyone makes through. One has to get a much better understanding of the concept of edges and corners, and the fact that an edge has two stickers and a corner has 3. The possibility of parity also adds up to the complexity. Overall, I would not recommended learning Old Pochman to solve a cube for the first time.