LOL, I can just imagine someone installing Ubuntu in their Surface, then seeing that several things don't work. Then they go to this repo, which is "scary" in itself for non-technical people, and then they click on the "detailed installation guide" at https://github.com/linux-surface/linux-surface/wiki/Installa...

And that's it, they are lost and tired at that point. They will just go back to Windows.

Yes of course. Without it you simply have no support for touch and stylus. It’s a great effort, but unfortunately not there yet (for SP4)