I believe the point (which you seem to tacitly agree with) is that a young dev's time is much better spent reading and writing code "the old-fashioned way" vs chasing the new SOTA in AI-assisted development. A competent dev can basically master agentic development in a few months. But it takes years to become competent.
Oh yea, I agree that building good software remains roughly as challenging as ever.
I was asking if there was something about the “agentic” part in particular that was difficult.