IMHO, introducing AI-generated codes is too stupid at least for now.
Even putting so-called "AI-slop" aside, AI-generated codes are legally unclear with the copyright "of the data sources used for learning". Who takes the responsibility? International laws first!
And AI-generated codes needs to be reviewed by "natural human who can take responsibility (better if skilled, talented and experienced)" before submitting.
And merge related (depending on each other) portions into single PR not to make human reviewers / committers too tired. It should be clearly the responsibility of natural human submitter to understand what the diff is going to do.
OTOH, reviews by AI before submitting a human-written codes could (hopefully) help polishing up the quality. I think this is the relatively safe (in copyrights management) usage of AI for now.