[sorenjan]

The maintainer is the first comment, agreeing with the post author:

> I concur, but there are two issues with this: Building the foundation of an editor is way harder than building features later on top of that, and currently it is unlikely that Microsoft will fund me to spend half a year working purely on this project. So, I'll work on this whenever I can, which is not much.

Maybe they're referring to the plugin system they want to implement: https://github.com/microsoft/edit/issues/17