"Telemark. Why not look at the video on this site Natural Turn Waltz."
You really need to take a second look at that video yourself, polished, as it clearly shows both dancers swinging at the SAME time, neither one pausing at any point to wait for the other.
"Would you say that the ladies left heel is still flat on the floor as the man has swung past and is on his two toes."
Yes, there has never been any dispute about that, but it is simply not relevant to the timing of her BODY's swing.
What is relevant is that the video shows that there is no point at which the swing of her body pauses to wait for the man. Instead it is continuous - she is swinging at the same time he is, she is just making a smaller, slower movement.