I think whoever really wants to know what Emacs is about will give it a try and spend some time with it. Or some other distro like Doom Emacs or Spacemacs or stuff like that, if they are after a better out of the box experience.

What truly is a problem and extremely difficult to solve, is getting multi core and concurrency into Emacs properly. A truly concurrent lightweight thing would be so amazing to have and make package development probably much easier. No more worrying about accidentally blocking the UI and all that.

To get there would probably break many existing packages and would probably occupy all maintainers for 3 years or so, because Emacs comes from a time, where software was not designed to support that.