Not sure if she's non human. But she said she got left "when" women could be silenced for not reason not left "where". She also said we didnt have funerals when i'm from, there's not enough time and there's not enough space. An alien also wouldn't have any idea how things were "supposed" to go but a time traveler would. So maybe the ETs are humans from so far in the future they just exist as pure consciousness. Or that just how they have to time travel.