This kind of ties back in to the point of the article.
For people who have used $EDITOR for 20+ years there's little incentive to change to something else, but if you want to bring in fresh eyes to your project so that there'll be enough people around in another 20 years to maintain the whole thing it behoves you to think about attracting those people.
Sane defaults and being more approachable is a good way to do that.
That is the splash page that hasn't changed much since 2000. Reading the helpfully highlighted first menu entry do you think that Emacs has a tutorial?
Users who can't even be bothered to read the text in front of them are not an asset to a project that doesn't charge them, they are a liability since they force the project in stupid directions. The death of firefox is a perfect example.
The thing that Emacs should focus on the future is true concurrency. Nice to haves would be a non-gtk gui, adding scheme scripting support and releasing a space cadet mechanical keyboard.
I don't follow this stuff closely, but I do have it in my RSS reader.
Here's someone recreating the Space Cadet keyboard key caps -- i.e. the plastic covers for the keys, not the actual keyboard. This is a more modern profile (key shape), rectangular/cylindrical similar to modern keyboards rather than the spherical top of the key like in the 1970s and 1980s.
It might give you an idea how expensive a custom keyboard would be.