kaluza: If the player with fewer points is in a position where he would end up placing the last stone, he can force a win for himself by just continuing to play.

The player with more points (on the board) has more opportunities to place stones in his own territory than the player with less points, so he should win the game anyhow.
There are other weaknesses that have to be discussed:
First, as I already mentioned, white may have fewer points on the board but may be leading by komi
Second: the player with more groups is in a disadvantage because he has maintain 2 liberties (eyes) for every group.

But then, in games where the outcome is so close it is unlikely players don't agree on dead stones.
The feature request was targeted at games where the (clear) looser could hinder the winner of taking his victory by just not agreeing to the dead stones.