Mining pool are becoming more prevalent in other parts of the world. Iceland, The USA, The Czech Republic, Georgia, Japan, etc.
China is still dominant but it’s losing market share quickly making the system more decentralized.
It is true that mining pools are big hands with disproportionate power over the network but even if one of them goes down, somebody else will take over immediately making the system very resilient.
Plus, why would they interfere with a system that is working so well for them and keep making them millions?