I don't really see the point, you could just change to when your a death to avoid being a death and when your afk as a runner you'll get killed by the auto slay so it's not like the player being afk is causing a problem
We have the same leaderboards on TTT and we made it so it does not record time if your in spectator mode.
Does it stop recording the time for game tracker though? Don't really matter if people farm leader board time