They don't stop to think what they really want and then set out to get it. These people are stupid. Whatever experience you have you can use to improve. Such students must develop and use their powers of discrimination. If your form is not correct then your pushing hands and fighting will not be effective.
Form is the most important thing.
It is not as important as form when it comes to training the usage of the art. I used to say that if you train form but don't train push hands then you have only half the art. Now I firmly believe that the form is the most important. This is a question of looking at what your emphasis is in practising the art. If you want to do beautiful movements then this kind of aesthetically pleasing form will not lead to the real taijiquan.