It should have been abundantly clear that wasn't the way the word "evolution" was being used here to being with. (Actually the comment you replied to used the word "metamorphosis" so what are you even going on about?)
Nonetheless, if you're going to quibble that it isn't ahckchtually evolution because it's missing a fitness function then I'm going to counter that you can form a loose analogy so long as you have some fitness apparatus that's conceptually and operationally separable from the implementation itself. I think some unit tests and a CI pipeline is sufficient.
