Well it was actually made for a project tha featured Draenor before destruction.
Shattrath is small here, but it still was too big. Actually its much bigger.
Well naga buildings have color similar to draenei buildings, plus there are some models in UTM using similar skins which makes them look even more draenei like.
If you thought that its for FoD, it isnt. We will make new models for draenei buildings, however some may be based on naga doodads. We may edit these buildings slightly to use them as draeni building doodads.