All you have done is repeat what you have been taught and haven't spent much time considering the truth or falsity of it.
If you practice questioning what you have been taught you will find that most of these movements are decidedly UNNATURAL.
Consider Bagua's circle walking with the outward twisting of the waist. This is very POOR spinal alignment and could be dangerous in many daily activities, especially in a fight.
Think for yourself and try not to parrot what you have been taught! Just because something has been taught for hundreds of years does not make it automatically correct.