Yes they would definitely want something they can exert control over at the moment. Hopefully more countries adopt Bitcoin for their own reasons over time. Or even if the populations start adopting and using it enough then government approval might become a given if they want the approval of their people? 

Hopeful_Sat

bitcoin

BRICS and Bitcoin

The dollar-based world order is definitely viewed as a problem, but I don't think these countries have an interest in a decentralized currency; they'd much rather have a powerful currency that they, and not the US, control. 

Gold backed currency is interesting but you'd have to trust that the currency is truly exchangeable. All countries left the standard in the 20th century, i.e. reneged on their commitment. I certainly wouldn't trust China or Russia to behave differently. 