As we have seen throughout all of the Shadowlands, souls have genders. Since there is no reproduction process, and everything there is spiritual, and not biological, why is it so? Since the spirits in Shadowlands are, well…spirits, the question of gender should probably not even arise. Especially when souls like Pelagos can actually choose their afterlife gender, it is very clear that souls are genderless, and that the concept of gender is needless in their now-eternal existences.
(I am not saying that everyone should be non-binary, but since death is the end of biological nature, the existence that lives on just doesn’t need a gender).
They are not floating clouds like in Dragon Ball series they have normal body so they have to be one or another i suppose, all in all where do Kyrians come from?
Also according to the progressive drivel, gender has nothing to do with biology. You are conflating gender with sex.
With this in mind, the spirits can perfectly choose their gender. Also, I don’t know why should all spirits assume an androgenous form since that’s what your topic is actually about.
I’m guessing there’s two answers;
Like in Maldraxxus, where you can choose what form to present yourself as, whichever you see as most powerful or whatever, and in Bastion a Kyrian can present as whichever “gender” they truly identified with. There isn’t actually technically “gender” there, but in the Afterlife it’s just a total social construct of Shadowlands’ societies.
The other answer is that the Shadowlands isn’t really a typical afterlife, it’s more like just a separate realm where people happen to go to after death. Shown by Revendreth this isn’t a typical style of afterlife either, there’s entire class systems and stuff. So with the fact that it’s technically a real realm that exists like the Twisting Nether or Emerald Dream, things like gender cross over into the Shadowlands, and in there your soul is technically gendered.