I can't speak for commercial software development, but that's very much not true for open source software. Personally, I don't want to use software that is a black box. That's the reason why I'm using FOSS in the first place.

Another note: some software has a history of multiple decades. In fact, I happen to work on such software. IMO it would be irresponsible to turn the code into an incomprehensible slop fest just because some AI boosters want me to believe that "coding is solved" or "software is dead".