Vulgar empiricism was already debunked by Lenin long ago, dialectical materialism advances upon vulgar empiricism and allows us to actually analyze forces as they change through time.
I am not arguing that the Soviet Union had irreversible problems. I am arguing that the Soviet form of socialism was developed by and for soviet conditions, and would not have worked copied 1 to 1 in China, Korea, Vietnam, Laos, etc. The Soviet Union was fantastic, but Utopian ideas of model-picking are not a scientific approach to building socialism.