It would be like if Argentina decided to ban MtGox.com. It would only affect argentinians.
Indeed, if Argentina wanted to move against BTC-E, likely nothing would happen. Russia, on the other hand, is a global power, and may have the power to affect action in the relevant jurisdictions.
If, for example, the US wanted to move against BTC-E, we could likely expect the domain to be seized in a relatively short amount of time.
I for once think its great that Russia and China move against bitcoin. That mean U.S. can go pro-bitcoin to without worrying of "dark" plans by its enemies.