Do you mean Slavic? Or specifically Russian?
If an American judge were named Lipinski, would you assume that s/he would give extra points to Polish skaters?
If a Canadian judge were named Rochette, would you assume that s/he would give extra points to French skaters?
If an American judge were named Yamaguchi, would you assume that s/he would give extra points to Japanese skaters?
Need I continue?
(To be clear:
I would make no such assumptions.)