Nivlac, that isn't always the solution, because practice rounds are played from the same tees by everyone. If the 2 opponents are from unequal tiers, the lower-tiered player might object to playing from the same tees as the higher-tiered player, given that the regular match was probably played from unequal tees. There would then arise a discrepancy between the regular match and the sudden-death shootout.
Finally, let us reiterate the crucial thing: the player who gets abandoned by everyone else on the course must be allowed to quit that round without any penalty, because at that moment, it would already have been a single-player game, not a multi-player match.
Should WGT fail to take this into account when implementing the new feature, it would be a disaster, because the victims of quitters would be penalized in the same way as quitters, rendering the new feature and reputation tracking useless.