Russia had currency problem due to Oil price war which was one of major reasons why goverment outlawed it, when currency is under pressure goverments are always afraid that any substential asset that could provide capital flight would be used and further push the crisis, altough in reality it just doesnt work. Goverments try to force capital controls or push out certain assets but in long run it doesnt work, market generall wins.
The pressure on RUB is still somewhat there and the longer the price of Oil remains low the further it will last so there might still be push back to BTC adaptation.
But lets see, if it does happen then for sure that would open new large capital inflows into BTC.