Its logical to find an alternative and not depend on USD. If the future says crypto is getting much attention, it shall be considered an alternative not just for the Russia. They'd rather be looking into it than dependent to whatever is on the table. Fake or not. Look into where this market is going, it just can't be this way for the rest of its existence.
A lot of alternatives to USD exists as of now, and crypto doesn't rank among the top 10. And it is beyond stupidity to say that Russia would sell its remaining forex reserves to accumulate an asset, which has lost 85% of its value during the last 15 months. We need to be realistic and remain patient. Else, the crypto community will become the laughing stock in front of the rest of the world.