> Communism is about control of means of production.

No, but perhaps you are now confusing communism with Marxism? Long story short, Marx and Engels hypothesized that capitalists would effectively withhold the technology necessary to realize post-scarcity. They suggested that the only way to bring post-scarcity into reality was to have the public take control of the means of production — a.k.a. socialism.

You are right to point out that being the foundation of the Communist party. Their efforts (on paper) revolve around the belief that they need to take action to see us find post-scarcity, believing, like Marx, that vested interests will stonewall the transition.

> China has adopted a capitalistic economy

You might say that is a move away from the Marxist underpinnings, but is not at odds with the Communist agenda. We nearly have post-scarcity in the area of food, and that has been primarily driven by American and European advancements, so today we have come to accept that Marx's ideas have not proven themselves. That does not diminish the quest to find post-scarcity, however. Communists (on paper) still have the same goal. If you look closer, while their system is capitalistic, the Communists still hold the reins to prevent autonomous capitalists from stonewalling post-scarcity.

You know, like as is seen in the original article. We have a purported transformative technology that can lead us towards post-scarcity being withheld by a small guild for their own benefit. Marx may have not gotten the exact mechanics right, but his underlying fear is playing out right before our eyes.