The developer experience of trying to emualate firebase locally has always been horrible, going on fifteen years, so I would guess no, they won't because they don't care.
But local developer experience is still not good compared to Postgres or Mongo.
I used Firefoo for a while and Google should just buy that product and ship it with Firebase. Otherwise, I have no issues with local Firestore emulation; everything works as I expected it with a few edge cases.
Firstly, we already running of powerful dev boxes but still hitting out of memory issues in the official local emulators. These stronger machines doesn't remove Java or replaces the old console UI or able to loads tons of data.
Google should fix it and it's expected, but for some reason, they haven't really prioritized local tools for local devs. In other ways of saying, some one had to take this in hand and try it out, and well we did :)