Eh. I think we'd like to believe that, mostly because we don't want to face the possibility that China's system might work out fine.
So does Greece. That doesn't appear to be doing Greece much good in the modern era though.
Also, large swaths of China's institutional memory were wiped out during the Cultural Revolution.
The Cultural Revolution is the one aspect of Maoism that everyone in China today, including the government, will admit was a terrible idea.