The Soviet Union got in the habit of centralised plan/command economies due to the civil wars that happened immediately after the (second) revolution in 1917. It is arguably not clear therefore that such mechanisms are the way that communism must be. (I wouldn't count the majority of other communist states that existed in Europe in the 20th century at all, as the political/economic system there was mostly about being Russian vassals. The real exception there is Yugoslavia, and that was a timebomb after the death of Tito.)
A more serious criticism against communism is that it is excessively idealistic and fails to account for high-functioning psychopaths (you know, the CEO/oligarch types) sufficiently well. Which isn't to say that capitalism is hugely better, either, but at least there it tries to lay a path open so that what benefits them can benefit everyone else too. Relying on appeals to someone's better nature though, that truly won't work.