"The Go team debates AI-generated contributions", that's nice but there's probably no real debate. A lot of the Go team work at Google, and Google has very likely mandated that everyone use LLMs to 'help' with programming and made them part of performance reviews.

The same is true for major corporate contributions to any FOSS project. Don't accept LLM stuff? Either people lie or you lose those corporate contributions, take your pick. (I pick the second, but that's a hard sell.)