Hussar said:
And, right here. THIS is what I'm talking about. "Loth's have an innate hatred of gods"? Where does that come from?
It doesn't really matter where it comes from. It arises in
response to a change to the existing lore.
So here's an idea: don't dramatically change the existing lore.
It's age old writer's wisdom: write what you know. It's not too much to ask that you understand the topic you are writing about. If you're going to put yugoloths in the game (for whatever reason), put them in honoring the tradition that gave rise to them. Respect the fun that others have had with them. Understand what makes them entertaining.
If you refuse to or if you cannot, don't even bother writing about them. Do something new. Be creative. Take the bits you like, remix them, and turn them into something new. Be authentic.
WotC is deciding to go back to the old lore in 5e (incorporating 4e changes where they're good/possible), in part due to a recognition of the value (in a monetary sense) of that lore. If they're going to put the creatures in the game because there's a lot to gain from putting these creatures in the game, then they need to put the creatures in the game with a recognition of what makes those creatures valuable. IE: The old lore.
If they can't do that, they're better off going in a brand new direction, because they can't write about the topic in a way that suggests that they know what the heck they're actually talking about.
I think part of what these articles are is a way for them to observe the reaction, and see what, exactly, is interesting about these creatures to the fans. Because they might not really know, or they might not think they have the right idea, or the old lore doesn't perhaps match up with what the creature has become through iteration and play.