Centralization is an information problem. You can't make good centralized decisions if you don't have good information to base this on. China still has this problem; the data coming up the pipeline is often much more rosy than reality. But it has the problem to a much lesser degree than the USSR, because surveillance technology and data management are improving.

This is called the Local Knowledge Problem. It's why centralization can't work and has never worked, at least not until we have some ASI they can overcome it.