The Dwemer were merely a plot instrument in Morrowind used to explain the existence of the Wraithguard.
Ha. That's not really how Morrowind was written.
You think they designed an entire race, with dozens of pieces of literature, dungeons, weapons, armor and runic language, just to set up an insignificant quest item?
The Dwemer explain the existence of the entire MQ. They are vital to the setting and the plot. They created the tools that created Dagoth Ur and the Tribunal both.
And the story of their disappearance gets deep into the details of the esoteric inner working of the universe.
They're also dead, and they're not coming back.