His point is that the Orwellian way of surveillance is impossible to do in practice, and that a proper science fiction writer would have left the surveillance to machines. So I think his critique is about the art of SF writing, not about the prediction of surveillance itself.
That’s just gate keeping. How hard does science fiction have to be in order to be considered worthwhile? Why does it matter?
Asimov missed the idea of the panopticon here, whereby control is self-enforced by the fear of being caught because you can be watched at any time, not all the time