The range of (areas of) competence is just so damn vast in our industry that any discussion about the quality of generated code (or code reviews in this case) is doomed. There just isn't a stable, shared baseline for what quality looks like.
I mean really - how on earth can Jonny Startup, who spends his days slinging JS/TS to get his business launched in < a month[1], and Terrence PhD the database engineer, who writes simulation tested C++ for FoundationDB, possibly have a grounded discussion about code quality? Rarely do I see people declaring their priors.
Furthermore, the article is so bereft of detail and gushes so profusely about the success and virtues of their newly minted "senior level" AI that I can't help but wonder if they're selling something...
/rant
[1] Please don't read this as slight against Jonny Startup, his priorities are different