I take two related issues with this statement:
1) He says "in fact... human rights have recently suffered" as if it demonstrates that China remains a communist country. Certainly attempts at communist societies and human rights violations are correlated in recent history, but human rights violations are not evidence of communism.
2) China is not communist, it is Communist - that is, run by a political party which has the name Communist in it. People use the phrase "communist China" as slur. I believe this perpetuates the notion that China is actually communist among a non-trivial portion of the American population. It would be better to call attention to China's authoritarianism, which I think is what he's taking issue with.