If we are using only a few LLMs then chances are that they will tend to make same kind if errors when building something. Take LLM prose being annoying - it is so because it is very homogeneous.

So it can very well be worst of bith worlds, worse security on actually homogeneous systems.

If everyone prompts, "reimplement Linux", that's possible or likely.

The dude who says, "Give me a microkernel, use QNX request/receive/respond for syscalls, it only runs WASM blobs, device drivers are isolated user mode processes, it only supports HTTPS on one network interface, and the file system is readonly ExFAT" will probably get something different.

I hate low value LLM prose (slop) too, but if you ask it to write like Herman Melville, you'll get few "it's not this, it's that".

Maybe you do still get the same kinds of errors when you ask for VMS, 64 bit memory safe DOS, or a Unikernel. I dunno, but it seems like something that could be improved when it's identified.