While your example is not AI related (should be handled by the LSP integration with "Rename Symbol") I agree that Zed's Next Edit Prediction model is *extremely* subpar. Imho they should either scrap it and just work on having a good integration story with third party models for the next edit (and maybe propose by default a partner model I don't know) or invest a lot more efforts into it.

But currently I sadly have to say the model's "help" is often a net negative.