Thank you for pointing this out. Came here to say the same thing.
I am intrigued by the Russian government investment in blockchain education for aspiring programmers. They see an opportunity and are seizing it. US Dollar dominance is at risk... then again, fiat currency is at risk.
Why should a Guatamelan who is buying from China as we all do pay the Chinese in US dollars, why should a Swiss sell his chocolate to a Japanese in US dollars, why should a Russian pay a German in US dollars for German cars?
It is illogical to use American currency in transactions not involving America. Crypto currencies offer a way out of this.
It has a lot to do with internal finance teams at large multinationals. Ive been on such teams and trying to manage multiple currencies was a pain in the ass and lead to many complications. The US Dollar was/is seen as a stable benchmark. Look at the value fluctuation of the Japanese yen in 2013-2015. A wild ride for my business unit who had costs in USD but made sales in JPY. Profit margins were always fluctuating. Made it hard to evaluate the business for shareholders/investors.