Strictly speaking nothing. But it is written to rile people up, which is a poor journalist ethics. The opposite would be true: “capitalist engineers solve X”

Communism means a classless, moneyless society whithout a state. China has all three of those things and doesn’t even claim it’s a communist society.

IMHO as an anarchist, they’re not even socialist, since the means of production are partly in control of the state, not the workers. But you could argue about that. But as I said: even China doesn’t claim that it is communist.