It makes no sense to assume that the beings on Dwilight are the same as the beings on Beluaterra. That they both may or may not fit in the caegory of "Massively powerful inhumans ruling over humans" is irrelevant given that their behavior is radically different; even characters in Luria would be aware of this fact. Here is how:
Luria, even as far away as it is from the Zuma, would have long ago heard news if the beings on Dwilight were as inclined to same level of destruction as those on BT. Therefore, the absence of such reports is by itself enough to throw suspicion on the assumption that the two groups are the same -- particularly so, if you are comparing past invasions of BT to Dwilight.
