I seriously don't see how version control and LLMs are comparable. A deterministic way to track code changes over time, versus an essentially non-deterministic statistical code generator that might get you what you want, and might do it in a reasonable time frame, and that might not land you in a minefield of short-term-good/long-term-bad design points.

You would be absolutely shocked how many software projects are still run, to this day, without source control at all. Or automated (or manual) testing. And how many hand crafted artisanal servers are running on AWS, never to be recovered if their EC2 instance is killed for some reason.