I can pretty much assume they are different people, with different visions/concept and no communication with each other.
Take this for example:
Our first godly item and we have been killing the bosses religiously 4x a day since Ostara started. As every experienced CH player knows the drop rate of Godly items is abysmally low.
A very common drop from Necro, his lowest tier drop. The "mighty" version is 600 nature magic, "majestic" is 700 and so on...
We have dozens upon dozens of these rotting in our bank.
Surely someone who designed Necro loot would be aware that the Ostara "godly" loot is at par with the worst Necro drop that nobody even wants, especially considering how many druids there are per server.
I think it's time these loot designers talk to each or look at each other's work.