There are plenty of powerful programmer editors, yes being mostly written in Lisp dialect makes it powerful, but also makes one lose too much time yak shaving instead of programming the actual task.

XEmacs, much better than Emacs back then, was my rescue for not having IDE culture back in my early UNIX days. We're talking back when Xenix and DG/UX would be known names to anyone working with UNIXes.

Nowadays, while Emacs key bindings and elisp might still be burned into my brain cells, I no longer reach out to it.