Earlier quoted context omitted.
You named some random things that have been around for short periods of time and claimed that "they won". I don't get it.
Based upon momentum I believe the Electron based ecosystem has already won, yes. The momentum there eclipses... Eclipse, as well as many other closed and open source editors. If you don't see the Electron ecosystem as a winner today would you say they'll have won if all editors stay at their current momentum of new features and bug fixes?
I get what you're saying, but I think you worry too much about social proof and momentum. It's also grossly unfair to Xi, a project in its infancy. As you mentioned earlier, there is room for another great editor. If the same logic had been applied towards the Electron based editors a few years ago, you'd be arguing against them based on 'pragmatism' because Emacs/vim exists.
What I'm trying to say is, people remember when you try to improve on things, even if you don't quite make it. Nobody remembers the guy commenting on a thread shooting it down. Decide which one you want to be.