I think the biggest issue is there's a lot of difference between someone with a few decades of experience and someone who is just out of school who leaned on AI heavily to even get through school. When you are starting out, you don't have the experience to know when the AI is going in a wrong/bad direction in order to redirect appropriately. And in relying so heavily on AI, you may not even learn the right lessons to help you from the mistakes.

While an exaggeration, it's kind of like the gap displayed in Ideocracy. You just get used to how things are and society kind of atrophies as a whole. Then you get the results of AI feeding itself, basically reinforcing the same mistakes that have the general affect of in-breeding. Eventually the more experienced will age out, and what gets left behind?

The code is relatively easy... it's properly understanding the problem and how a solution is meant to work that is the hard part.