Look, I think that writing your own editor is useful because one learns a lot. And of course, it doesn't need to use Lisp or even be extendable at all. But it's not Emacs any longer if you remove the Lisp part.
To answer your question: I actually start my editor many times a day. I know the "start once and use emacsclient" workflow is the standard and most efficient way for Emacs users, but I personally tend to open and close editor windows frequently, just like using a simple notepad.
Regarding the Lisp part, I completely agree with you. As I mentioned in other threads, if you remove Lisp, it is absolutely not Emacs anymore.
I am not trying to build a true Emacs, nor am I trying to deny its great philosophy. I just deeply love the physical typing experience and muscle memory of Emacs keybindings. My goal was simply to extract that specific UX and package it into a standalone app that I could run immediately without any setup.
So you are right—it is just a personal project to recreate the typing feel I love, rather than an Emacs replacement!