What would be ideal for me, but probably not possible in reality, is an editor that cannibalizes popular plugins. So, if a feature is sorely lacking, the plugins appear, but eventually the core functionality grows to replace the plugins. A new user installs the editor and gets a rich set of features that are battle-tested and built to work together. What seems to happen in practice with emacs and Neovim is that the core never gets any bigger, so a new user gets zero benefit from those decades of work, experimentation, and discovery, until they invest the time to integrate dozens of disparate packages into their own setup which they will have to maintain themselves over time.
The other "in practice" side is that without plugins the editor will never get as good as a properly (though painfully, though less painfully with some preconfigured distribution) configured alternative one with plugins
The maintainers are collaborating with the dev and hope to get a PR open sometime this upcoming year.
Vim bindings are not the most consistent, but they are ubiquitous. Every program that offers Vim mode has very similar keymap. If modal text editor deviates from them, it better be for good reason.
Kakoune bindings are very different from Vim, but they are provably and objectively [1] better, so that's fine. They are also more consistent and there is a clear idea behind the whole design. It's written down in documentation. You might prefer Vim or Emacs, but at least you can see that changes from well known Vim scheme are not made at whim.
Helix keymap feels like it was improvised without any thought behind it. „Let's take Kakoune binds and add back visual mode cuz I feel like it.” Currently, they are designed by committee in this GitHub issue[2]. I don't see any design notes and explanations why should I spend time learning Helix keymap.
[1]: https://github.com/mawww/golf [2]: https://github.com/helix-editor/helix/issues/165