I don't really watch Greco much, but yea it is interesting how the women's team have some actual Russians, & is more of a mix of ppl from Russia in general, since they can't rely on the Caucasus (because a lot of very traditional societies esp the hardcore Muslim ones) who squeeze everybody out on the men's side.
So far as I see 'Euro-Russians' do Judo, while Freestyle is more of a Caucasus-ian and Siberian thing..
I tried looking through the stats a while back and if I have it right, the last (and only, since 1991?) ethnic Russian male to medal in freestyle was in 1999 (Andrey Shumilin).
In fact, think he might be the only ethnic Russian ever to medal for Russia in freestyle.