Haha, I didn't play the 6th game much, I barely remember who's who... I thought it was Skyrim.
It's surprising. Why do Thunderlords have separate body animations?
What surprised me more is that the snow mill and the regular mill seem identical, but the geometries/skeletons are different. I think the developers just created textures/models and immediately uploaded them to the game in batches, without worrying about duplicate files.