The more interesting question is whether AI use causes the shallowness, or whether shallow people simply reach for AI more readily because deep engagement was never their thing to begin with.
More interesting question than what? And also, say you have an answer to that question, what insight do you have now that you didn't have before?
I'm going to guess the same way Money makes rich people turn into morons, AI will turn idiots into...oh...no
AI enables the stereotypical "idea guy" to suddenly be a "builder". Of course, they are learning in realtime that having the idea was always the easy part...