I really like your idea about officially supported packages, but also to group them together for popular techstacks.
This was exactly the same problem I had. There were so many options that just didn't work well that I wasted tons of time trying out every plugin I could find to solve my problems.
And I still didn't fully solve it, I just gave up and lived with annoyances.
Edit: I perceive VScode partially solved this problem with the download count/voting on extensions.
subl is notably faster, its also a very well rounded editor with a tiny memory footprint...
But I also have the issue that the plugin support is abysmal, that sane defaults are non-existent and it takes a long time to get things to work well with a very popular web techstack like React, Styled Components, eslint. Even now there are times when the syntax highlighting is wrong.
It would do subl a great service if they improved the package management and created a number of officially supported packages for popular techstacks that allow people to simply (ideally) 1 click configure the editor.
I shouldn't have to read a 15 minute Medium tutorial on how to configure eslint, IMO that is ridiculous.