In the long run a planned economy is a huge disadvantage, the Soviets and now the the CCP are prime examples. For instance, the CCP is also sitting on a bunch of practically empty metropolises, paired with a property bubble and a falling population (all of which are exist to their meddling).
"Planning" has a very different meaning when referring to what France did, what the USSR did, and what China is doing. Remains to be seen if China is at a disadvantage.