At this point, arguably, any code written a year ago by the coding LLMs of the time can be rewritten with those of today, but "better", whatever metric of better you optimize for. This may get better in time, with either better models or better prompts and the like.

Refactoring and clearing up tech debt is faster now than it's ever been, and assuming it'll be even better in the near future, why should anyone care about what is "good" right now?

(This is a devil's advocate kind of remark by the way, I'm very much in favor of good / quality code, but also realistic enough that nobody has or gets time to finetune code nearly as much as they should)