The point is do you want to deal with a world reserve currency from a country with transparent and independent Federal Reserve, or do you want to deal with a reserve currency from a country where there is absolutely no transparency, and where the federal monetary policy and exchange rates are all controlled by the government, companies account books are routinely cooked, and economic statistics are fabricated.
A lot of people on this forum dont realize that literally every single policy in China about anything of significance is made by a committee of 7 key individuals of the CCP standing Politburo, and rubber-stamped without any debate by the CCP rank & file. That's China for you. It is the biggest dictatorship in the world right now. Not even Russia compares to it.
Who is going to be crazy enough to want currency from a system like that to be the world's reserve currency ??
Maybe a better question is: As a country, are you going to hold billions of dollars of forex reserves in Chinese currency when you dont even how how they are going to determine the exchange rates for the yuan.