In my view, it is more consistent, and makes more sense, when:
The astral plane and its dominions and wildspaces are strictly a mindscape of information constructs. Virtual realities of consciousnesses.
By contrast, the ethereal plane and its domains, fey and shadow, are spirit realms of actual physical forces that exist within spacetime. These ethereal forces, including fey and shadow, can interact with the material plane.
The ether is where desire, will, and dreams, reshape physical realities.
It is worth distinguishing the "dream" of the aster as strictly a collective mindscape, from the "dream" of the feywild that is a twilight zone where the dream becomes an actual reality with tangible force.