If by hand coding you mean actually learning how computers work and writing competent code, yeah it's obsolete. Coding today is taking six dozen frameworks off of Stack Overflow and abstractioning them together to solve all your problems.
Back in the early 80s, for example, the hot thing was 4GLs, which was supposed to allow such a high level of abstraction as to put development into the hands of business analysts. Obviously that went nowhere. And LLM AIs are just one more step in this, albeit a potentially large one.
As Carmack says, the real skill is to understand what you're trying to develop, how it relate to the needs of your users, and to apply this systematically. That understanding might be replaced at some point in the future, but that is not today.
Instead you're glueing together stuff that barely works on its own
Makes me glad I didnt get too invested in the previous hacky solution.