As the adage goes:
If you aim for the stars and fail, you'll end up on the moon.
If you aim for the stars and fail, you'll end up on the moon.
Most of the "you'll never need programmers again!" things have ended up more "cars-showered-with-chunks-of-flaming-HTPB" than "accidentally-land-on-moon", tbh. 4GLs had an anomaly, and now we don't talk about them anymore.
(It's a terrible adage, really. "Oops, the obviously impossible thing didn't happen, but an unrelated good thing did" just doesn't happen that often, and when it does there's rarely a causal relation between A and B.)