> “Our LLM built this thing, productionized it, and dealt with all the attendant challenges over 5 months” is a significantly more compelling narrative than “the source control team at Meta had spent 10 years building and productionizing this system, and we were able to point our LLM at it and rebuild it in 5 months”.

This is, unfortunately, the largest underpinning issue with a lot of software currently being released from AI-heavy engineering workflows. Even if it wasn't done explicitly, (almost) everything modern LLMs spit out is built on top of decades of prior failures by humans; even if something is "novel", it's trivially easy for the LLM to start with excluding all the paths that failed before (that humans were generous enough to share freely)

tldr; almost everything these days is a copy, even if we don't know what it's a copy of (yet).