Applying our own value system to unfamiliar situations has serious pitfalls. In the case of tai chi, the Art already has criteria. Seeing the Art through our own agenda merely serves to impede learning.
We see only what we want to see.
Instead of understanding tai chi in its own right, we filter our exposure to the Art through our own opinions and ideas of what tai chi is about. This prevents us from learning.
Validating our own viewpoint has taken precedence.
Comparison assumes that you are judging like with like. Yet this is seldom the case.