I agree with you, in fact this is a rather rudimentary principle of Karl Marx's property relations. My point was rather that without anything to strive for, how is there room for growth? What worries me is how infantilising the world might become when people ascribe to a utopian theory of socialism.
That's precisely why I think communalism dissolved at the hands of empires, why communalism did in fact produce a class of very callous and opportunistic people who became kings and emperors.
And why I reject this dialectic of how communism is a return to the past. If we do this, then we will regret it. There must be something better. Something which combats this intuition of old with philosophy and principles, that shapes the proletariat to pursue better purposes than Epicurean pleasures.