"Do you believe the correct footwork and the correct use of the feet is important in any of the dances. If your answer is no you are a walk about foot lifting sub standard social dancer who would be happiest dancing in a ploughed field wearing gumboots."
I believe that the correct action of the STANDING FOOT is absolutely critical.
On the other hand, the action of the moving foot is of relatively little importance. Yes, you want it to be efficient with no wasted extra actions such as an unecessary lift. And more importantly, you want to be sure that no action of the moving foot disturbs your body.
But you will not really understand the mechanics of dancing, until you can MENTALLY ERASE THE IRRELEVENT PARTS OF THE PICTURE and examine only those relevent to the problem at hand. For example, if you want to understand how the body moves, ERASE THE MOVING LEG FROM THE PICTURE. Only be concentrating you attention on the STANDING LEG will you ever start to see what is really critical to the mechanics of the dance.
Once you understand the core mechanism, then you can put the side details back in. But until then they will only confuse you... as your lenghty posting history, regardless if you feel like writing as quicktep or as redriding, only serves to demonstrate.