I suspect that it does not have atoms, and it clearly has properties similar to that of a superfluid.
Which superfluid properties properties are those?
This does not mean that it is a superfluid, nor does it mean that aether must have mass, and it certainly doesn't mean you can make random comparisons between it and superfluid helium.
It also does not mean that you can just go ahead and assign arbitrary magical properties to aether without being able explain the nature of those properties.
If you want to insist that AWT is the aether that Einstein believed in, then you should probably look at
Superfluid Vacuum Theory (SVT), because he basically used the term aether to refer to the physical properties of empty space. Just don't be surprised if you get questions about how a wind made up of empty space can form stable eddies (among other things).