It's thematic concern for me, rather than an actual analysis of gods/square parsec or whatever. They're beyond time and space (though can be killed by humans with Civil War replica weapons), but does that keep them from disagreeing, or trying to meddle at the same time. I guess if there were billions of Gods who never took an interest in material, warp capable civilizations, it wouldn't be an issue, but if there were 5 different gods who all liked to interact with starfleet cpatains, but never interacted with each other, or were associated with each other in any way, that's just too crowded a conceptual space for me.