This point might be moot, but needs to be made.
Other than the very first basic step done to " New " music, everything else is someones idea what should follow ( no pun ).
When VW was initially danced, it had only one turn... NATURAL .
Sooo.. if the music determines the dance, then by eliminating the cross on the Rev. turn and yet dancing to the SAME music, is it not VW ?.
Variations , by their very name, are just that.. no more.. no less . This begs the Q.. do they define the " Dance " ?.
By the way, this thoeretical argument has been on going for multi yrs.
The Germans have a very different view on how we percieve it to be !