On a large scale, aether is what 'transfers information" for/of electromagnet, gravitational, and other fields in spacetime. On the smaller scale, we see quantum foam and particals popping in and out, causing tiny "bubbles" or what not in these fields. It likely has many other qualities.
The only reason aether is not favored is Occam's Razor, which actually does not apply but is used anyways.
It may or may not be luniferous, though my guess is that it is not.
My claim has proof. Simply look at the work of Lorenz and the experiment proof for relativity.