Then you don't understand computer code. You can easily but in code to only produce X similar things. The reason why you see 200 fish dogs in NMS is because they wanted that to happen. Which by the way there isn't 200 different fish dogs. Well there could be. Its funny how some things you accept 200 and other things you don't. A human artist can just as easily create 200 slightly different fish dogs if they wanted. Of course it would take them far longer which is why NMS used code to generate the animals. Because it would take them years just to create all the different possible creatures code can do in shorter period of time.
http://wow.gamepedia.com/File:Arthas.jpg he looks like another human there just slightly different.Yeah, but if Arthas looked like Illidan with his horns pointing backwards instead of forwards and with red hair instead of black, people would probably feel that was a pretty lame-ass attempted distinction, despite the fact that they are technically different.
http://wow.gamepedia.com/File:Arthaspaladin1.JPG vs http://wow.gamepedia.com/File:Arthasdeathknight1.JPG
http://wow.gamepedia.com/File:Lich_King_Arthas.jpg
He still looks human. You are comparing two vastly different models when you try to compare Illidan and Arthas. Which doesn't work for the type of argument you are trying to make. Because that is like comparing Fish Dog to Unicorn Dog (http://1u88jj3r4db2x4txp44yqfj1.wpen...-2-800x450.jpg from http://venturebeat.com/2016/08/09/no...d-space-dinos/)
That is the difference between Illidan and Arthas. Two different types of Models. Try comparing two Humans from Warcraft together and see how similar they are. But again why does it matter that a human created them versus a computer? Why is Human created work automatically better just because it was created by a Human?