Not everything is everybody's cuppa. Vampires aren't Thief Universe either, but people added them in. What is important is whether the mission designer had fun and some other folk did too playing it. You don't have to play everybody's mission. I don't like the deathmatch type games, so I don't play them (sorry Yandros, just not my cuppa). But lots of folk enjoy them. And sometimes you just need a change from potatoes and sausages, know what I mean?