All of which perhaps makes this religion suitable for Beluaterra. Very suitable in fact, since all of the non-human forces it references are known *only* there.
There are a few reasons it's not there, one of which being that I don't want a character on Beluaterra, and another being that Koli thinks Beluaterra has been crippled and the next Invasion will finish it, at which point the rest of the continents are in danger. Dwilight would be the next logical target, so he wants to begin preparing the defenses and alliances
now rather than waiting until it is too late.
I am with Indirik though when it comes to its place on Dwilight. It seems far too modern to me, too much like modern political ideologies, with almost no trappings of anything I would consider religious. What exactly are your 'Priests'? What do they 'preach'?
They preach that the defenses of our world have been breached, that the forces of chaos embodied in the Daimons, Undead, and Monsters are growing in strength and power, and that humanity must unite and grow in the face of the coming darkness or be destroyed. They preach that the gods will not stop the coming apocalypse (depending on your sect because they do not care, have abandoned us, or been defeated) and so we must learn to guard ourselves. They preach that the end times are coming, the end of an era and the dawn of a new one, where humanity has learned and grown enough to defeat these menaces...Or been destroyed.
I disagree with the comparison to Norse religion since the Aesir aren't exactly a minor part of it - they're the heart of it.
I would disagree with that. From what I've seen the heart of the Norse mythology was standing in opposition to the Jotun and other hostile forces and readying for the Last Battle. You can take out the Aesir and still have the Norse readying and preparing for battle and standing against unbeatable odds simply because it is the right thing to do.
I do understand your point about humanity's reaction to monstrous and inhuman invasions, but wouldn't the continual defeats of the invaders reaffirm faith in the gods rather than destroy it?
No entity has manifested to protect humanity with the exception of the Light (and I'm surprised no one has made a religion worshiping that yet), and Koli doesn't trust the Light. The First, Second, and Third Invasions would work for your point, but we, at best, stalemated the Fourth Invasion, which looks to me like the protections on our world have decayed or broken...Or, in the case of gods, been abandoned. Indeed, I know of a couple who have joined or are planning on joining the Manifest Path because they explicitly believe the gods abandoned us because of [insert sin here] and that following the Path is the way to bring the gods back to save us. The Tyrist sect of the Path thinks Koli's revelation was directly from Tyr, meant as a way to live our lives in order to appease/strengthen/whatever Tyr to convince him to return and help us.