In my (limited) experience, I most needed a CLI/TUI editor when working over ssh on a server or in a VM where I didn’t want to bother installing a new editor or setting up a remote editing connection, or inside of something like a docker container, where the image is somewhat immutable.

If I needed to spend enough time editing that it made sense to set up an editor, then I could just spend the time getting VSCode or Neovim set up just as easily as Helix.

I don’t really mean this as a criticism of Helix, just explaining why I did not initially want to invest time into learning it. Now that it has matured more and I have learned Vim enough to be comfortable, I would be interested in taking another look.