The baffling thing about that poll, and the thing that kept me from answering an unequivocal "no", is that they list ninjas as a "modern" concept. Makes you wonder just what their definition of modern is; is it anything that's either geographically or chronologically separated from medieval Europe? Because ninjas certainly aren't chronologically separated. Are monks 'modern', because they're based on a Chinese concept? Are the ogres now too modern because they're now themed on the Mongols?
Clearly a discussion needs to take place on what is 'modern', before we can say what does and doesn't belong in the game.