Anyone can publish a config and distribute it. For instance, the author of this article could create a 'new user friendly' config and distribute it just like doom, spacemacs, etc. If it's popular enough it will see a lot of use, but my guess is it would most likely wallow.
Making those changes default would require existing users to update their configs, not necessarily a big deal, but for what? So a new user can download Emacs, play with it for a minute, and still conclude that Emacs is a dusty relic because they don't understand the philosophy?
The whole idea of chasing new Emacs users is kind of silly, Emacs is more popular than it has ever been, and if a new user doesn't come to Emacs for what Emacs offers they were never going to stay.
Out of the box solutions already exist, Emacs is in a different category, and need not compete in that arena - especially at the expense of current users.
Appreciate the reply, cheers.