If implementation of anything is easy, far fewer people would be needed to keep the projects alive.

AI is okay at doing simple things, but it needs to be overseen. Even before any viable AI, I used to read code more than to write. And Emacs is a good tool for that.

Then, Emacs specifically has a killer app, Org mode. For me, it's about as important as good programming modes, if not more

More importantly, Emacs is a platform (as is Neovim, and VS Code). It adjusts to the needs of the user and the moment.