Ruin Explorer
Legend
Sure, but there's also the issue that the alignments assigned to the gods in Eberron tend to be much more in-line with what you'd expect from their teachings. Whereas that's not really the case with a lot of settings.I get what you're saying overall, but counterpoint: Eberron. The gods of Eberron's Sovereign Host and Dark Six have listed alignments, and they don't create the same sort of debates/controversy that the gods of Greyhawk, the Forgotten Realms, and Dragonlance do. This is due to the fact that the gods may or may not actually exist, but they don't create these kinds of discussions (not in the real world, at least. One of the core teachings of the Blood of Vol is that if there are any gods, they're all evil for allowing peoples' souls to be destroyed after death and preventing the apotheosis of the living).
It definitely is a massive help with Eberron that the setting is agnostic on whether they actually exist. It allows religion to be more diverse in that setting too, in terms of how it operates.
I think what Eberron most particularly illustrates is how helpful it is to construct a cosmology all at once in a coherent and considered way, rather than to randomly add stuff in and accrue cruft and make retcons and so on as the FR has done repeatedly. Which has ended up with a place where Ed Greenwood doesn't seem to even agree about what the cosmology of the FR is with the actual FR writers.