Its just economy 101.

People have been running crappy code commercially for over half a century now. Not many companies successfully differentiate by running good code - it usually does not matter to the end consumer, other things are much more important. So now companies will pay less for code, and maybe it is a bit worse (though I personally can't believe AI can do worse than corporate software developers on average). Hobbyists will remain hobbyists, and precious few will be lucky enough to have someone pay them to handcraft stuff. Exactly what happened to woodworkers and other craftsmen.