Could not the same be said for an ordinary 12 player assassin game? All it takes is the first player to drop next to his target and it's game over.
Well, if you have 4 players targeting one guy, the odds of having all territory of that player visible are much higher than in a 12 players game in which 1 guy is targeting another.
But yes some map in a 12 players assassin game are just random luck. Or just like assassin on doodle or luxembourg, which are played a lot for sure, but mainly in speed I believe, and I don't think people playing teams games would like to join a game that can be finished in 2 or 3 turns. People playing teams games are, imo, those that dislike to have huge luck factor, and those that like to plan a complex strategy, that's one teams games mean for me, and that is why I love team game. So if we are to create team assassin game to make happy people like the OP, we ought to make them interesting for them.
But anyway, what's the point of arguing ? Do you feel there is any advantage or does it make more sense that you have to kill only one player of the team rather than the whole team in a "team assassin" game ? Just wondering, because personally I'd go with kill the whole team. It would make the game much more balanced and interesting, and ti would make more sense.