SK does have defense, actually. If the game played out, it wouldn't end until the timer ran out and forced a draw. This is lame, so BMG decided to just give someone the win.
Imagine being the SK in that situation. You have no way of killing the Godfather, but you manage to defeat the rest of the Mafia and the Town, in order to get to a 1v1 with him. Do you really think the best you should get for that is a scummy draw you had no way to avoid?
Moving this to not bugs, as this is an intended feature called Stalemate detector.
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