It means "for my requirements they're good enough."
They haven't solved coding.
Programming is an art form. And the better you get at it, the better kinds of ideas (abstractions) you can create.
This is something today's AI cannot do.
If everyone were to permanently switch to AI for software development, software innovation would cease.
even setting aside the artistic side of the profession, I see these things make all sorts of basic mistakes, so even the mechanical part doesn't seem "solved" ime