It is extremely well known in the world of programming that reading code is substantially harder than writing it. Just because you have the code in front of you does not mean that determining that it is correct is a trivial (or even moderately easy) task.
That's right. I don't think that AI makes coding easy or trivial. What it does do, is it accelerates your ability to get past the easy and trivial stuff, to the hard parts.
When you get deep into engineering with AI you will find yourself spending a dramatically larger percentage of your time thinking about the hardest things you have ever thought about, and dramatically less time thinking about basic things that you've already done hundreds of times before.
You will find the limits of your abilities, then push past those limits like a marathon runner gaining extra endurance from training.
I think the biggest lie in the AI industry is that AI makes things easier. No, if anything you will find yourself working on harder and harder things because the easy parts are done so quickly that all that is left is the hard stuff.