Sure, but that wasn't really the question, the question was why it's obvious no-one or no-thing have closely reviewed the code? Given they use LLMs to produce the code, wouldn't surprise me if they used LLMs to review it too, and I don't see it as unfeasible to be able to review a lot of code on a lot shorter timeframe.
It's not like they're doing something unique or novel, they even had an implementation in another language they knew did the right thing, so all the review would have to do, would be to make sure it's the same in the new language.
Don't get me wrong, again, probably there is plenty of mistakes in there, and might catch on fire when run in the wrong way, but I still don't think it's obvious how they've done things, unless you have insights into their process which seems clear to me now that you don't.
