Don't mention AI, just point out why the code is bad. I've had co-workers who were vim wizards and others who literally hunt and pecked to type. At no point did

Don't mention AI, just point out why the code is bad. I've had co-workers who were vim wizards and others who literally hunt and pecked to type. At no point did their tools ever come up when reviewing their code. AI is a tool like anything else, treat it that way. This also means that the OPs default can't be AI == bad; focus on the result.