Being us, they weren't wiped out. Following your train of thought, I suppose we ought to consider the Tutsi/Watusi as somehow less than HSS as well, considering they are bigger (in height) than the average person.
Cro-Magnon's are HSS. Finns, Basques and Berbers are HSS. You are trying to create a difference where none exists.
Ok, so HSS could grow to basketball player heights in pre history and through to the present and it is solely this difference in genetics that accounts for Cro Magnon, Grimaldi and the Watusi.
There is NO difference between them and us because they are us. It's worth explaining because in the long run I'm sure this will crop up time and again. To what extent have we been mislead about Cro Magnons in the past?
This site has made it much clearer but thanks for your comments Cormac as they make me look for better answers to my own innane questions.