[unishark]

I think "propaganda" is too harsh, more like "spin". This is apparently a fine achievement of quantum optics that will hopefully be applicable to quantum computing. But it is being directly billed as a quantum computer itself, which is a stretch.

A classical computer is more than an experiment. The "just" part of that statement is what matters. Computer implies some degree of generalizability in computing things. If it can only compute one thing, it's at the trivial extreme and would be more logically described in terms of that single things it does. For example a beamsplitter that divides power in half. We call it a beamsplitter, not a classical computer that calculates 1/2 input power.