I think most tools, according to the UNIX philosophy, do one thing (and do it well). AI is a tool that does _a lot_ of things...to various degrees of success. While you can verify that the output of `sed` or `grep` is valid, you can't with 10k lines of code you have no context on (without _significant_ effort).

Same with Gimp, Firefox, and your terminal. Tools, all, do many easily verifiable things. AI isn't verifiable without an existing framework, and that's why it's so "good" at rewriting code from language A to language B, but not at zero-to-one building real world software.