If you think about it, the whole concept of a rotor and the added complexity that comes with it, only to remove the need for the daliy love and care by the owner, is not "pure", thus not entirely satisfactory to us Purists...
I like to know that my watch runs because i make it run, and i like to know that there is nothing superfluous in the caliber.
Difficult to express, but yes, i tend to agree that even though the SaxOMat is a very nice and clever movement, it does not have the purity of the Lange handwound calibers (and i'm not just referring to gold chatons on 3/4 plates...)
Handwound Fred