Yeah, but that was more of a problem with the base game selection then the dlcs.
Imagine we had the greater reha and a pudu in the base game, then this problem wouldnt have been nearly as substancial without taking away from their dlc format.
Overall i feel like the emu and the reha would have been great badegame animals, as they would have been relativly easy to make with the ostritch as a base, while giving both continental and not mammal representation.
Way better pick for a similar animal then the bonobo or hbb for example, would have even appreciated them more then the red ruffed lemure