The MMX did not detect the ether wind because there is no ether wind.
The MMX was looking for a stationary ether the Earth moves through.
There is no such thing as a stationary ether the Earth moves through.
Aether is displaced by matter.
"Doth not this aethereal medium in passing out of water, glass,
crystal, and other compact and dense bodies in empty spaces, grow
denser and denser by degrees, and by that means refract the rays of
light not in a point, but by bending them gradually in curve
lines? ...Is not this medium much rarer within the dense bodies of the
Sun, stars, planets and comets, than in the empty celestial space
between them? And in passing from them to great distances, doth it not
grow denser and denser perpetually, and thereby cause the gravity of
those great bodies towards one another, and of their parts towards the
bodies; every body endeavouring to go from the denser parts of the
medium towards the rarer?" - Newton
Newton is referring to the state of displacement of the aether.
The aether does not grow denser and denser. The aether is, or behaves
similar to, a supersolid. However, Newton is correct, displaced aether
pushing back and exerting inward pressure toward matter is gravity.
Maxwell's displacement current is a physical displacement of the
aether.
Einstein defined the state of the aether as determined by its
connections with the matter and the state of the aether in neighboring
places.
This is the state of displacement of the aether.
de Broglie described a particle, even isolated, as in energetic
contact with a hidden medium. de Broglie was describing a particle's
displacement of the aether. The displaced aether pushing back and
exerting inward pressure toward the particle is the energetic contact.
Aether has mass and physically occupies three dimensional space. There
is no such thing as non-baryonic dark matter not anchored to matter.
Matter moves through and displaces the aether.
Displaced aether pushing back and exerting inward pressure toward
matter is gravity.
A moving particle has an associated aether displacement wave. In a
double slit experiment the particle travels through a single slit and
the associated aether wave through both.
Einstein's curved spacetime is the state of displacement of the
aether.
There is no such thing as non-baryonic dark matter.