Terrible analysis. Russian Ruble is worth zero. Nobody buys rubles nor wants to (can only be used to buy silly chinese garbage and Indian curries)
In short, all russian companies must convert 80% of their income to ruble so they create an artificial demand. Externally, nobody wants it, but internally, they are FORCED to buy it so the rate is artificial.
Basically, it's like getting a life sentence in prison and someone giving you $10 million dollars but telling you, you can't use it or transfer it to anyone else.