I get that it's supposed to reflect the elves returning from the lands of the Valar in Tolkien's Silmarillian, with all the kinslaying and bloodshed but it somehow seems even worse.

Think about how Nelf society was completely devoted to Elune. Even their study of the arcane is a reflection of astral and moon studies. So then you have the War of the Ancients and the sundering and the casting out of all the remaining high elves to go off to the EK with the Sunstriders. And there's zero mention of Elune in high elf society. The central pillar of their entire civilization not only forgotten but straight up erased and without mention.

Pretty wild.