Is Li Deyin's Tai Ji Chuan really not as useful as the traditional Tai Ji Chuan?

Professor Li Deyin's Tai Ji Chuan is mostly a competition routine adapted and created on the basis of traditional Tai Ji Chuan. Tai Ji Chuan and Tai Ji Chuan's game routines are more entertaining. Because each set of boxing takes a short time and its movements are simple and generous, it is more suitable for beginners in Tai Ji Chuan to master. If you want to keep fit, I suggest learning traditional Tai Ji Chuan. The main purpose of our boxing practice is not to perform, but to keep fit.