About the PBOC i am not 100% sure Bitcoin is not in their best interests. And I would guess they are also not sure. The macroeconomic implications of Bitcoin are so complex that I don't think no parties really know. And that's why no government has made any extreme move about it.
Bitcoin is a means to subvert PBOC policy so it is hard to see how they can be in favor of it. Wu will be a tool of PRC policy when the Central Committee decides it has a Bitcoin policy. China is a communist dictatorship.