I'm not going to read it but I bet it's nowhere near as good as he thinks it really is

I wouldn't be surprised if the statistics on "AI generated code" was like, I type 10 characters, I let AI autocompleted the next 40 characters, but then I have to edit 20 of those characters, and the AI tool counts "40 characters" as "AI generated" since that was what was accepted

Not to mention since it's probably all trained on their own internal codebase and there's a set certain coding style guide, it'd probably perform way worse for general coding if people weren't all trying to code following the exact same patterns, guidelines, and libraries,