Specifically, he dislikes the focus on the aesthetic, neon lights, mirror shades, etc. I think Gibson really dislikes Cyberpunk 2077, for example. Gibson argued they are missing the point, staying shallow and forgetting the "message", which was PUNK: a rebellion and a rejection of the mainstream state of affairs. Gibson was a punk writer, and his writing was a critique of Reaganomics and the direction the world was going back then.
I think he means we need a different kind of critique now, not anchored to neon lights and vaguely Japanese inspired retrofuturistic aesthetics which look like what the 80s thought the future would be. And nothing can be more conformist and anti-punk than lazily copying a now classic aesthetic and doing nothing else with it.
That said, I love that aesthetic myself, and have no problem being stuck in the past. But I see his point.