The article called out that none of the changes make emacs any less powerful nor do any of the changes remove any functionality. Users can still do everything they could always do with emacs. They can still take this "journey" you mention. All the changes do is let them get started quicker and jump in with at least some familiarity.
Old emacs users such as yourself can keep on using your non-standard keys and old terminology. For you, nothing would change. For new users, they'd be productive quicker and still able to take advantage of all the things that keep fans of emacs using to emacs.