I just don't see this as a real problem.
A small (incomplete) list of real problems:
- No timeline on Wayland support, Wayland will likely require substantial work and refactoring.
- Performance issues on long lines of text.
- Architectural/technical debt.
- etc...
Emacs is, fundamentally, a power-user editor. There are problems to solve, but "I had to change the default fonts" isn't one of them. Why would you use Emacs in the first place if you weren't interested in changing the default fonts? Maybe I'm out of touch, but I would never recommend a new Emacs user to just download Emacs directly. I assume they're starting with someone else's config.
Emacs fills a specific niche that other text editors today still aren't satisfying, and it should continue to fill that niche. What other text editor can I use as a window manager?
I haven't checked in a while, but I think Spacemacs solves literally every single problem that they're talking about, including prompting users whether they'd like to enable CUA mode by default. But Spacemacs can't solve the Wayland problem.