However, it's bad TV when when someone leaves early in an episode and there is no TC (see Sue and Bruce departures). To avoid that, I can see putting in the stipulation that they play out ICs to F2 if someone leaves postmerge.
Cancelling an IC can be just as much of a twist. Terry got a free pass at F7 when Bruce left, the episode he was exiled. Nobody has even won immunity after being sent to exile island. Perhaps the one IC not designed to favour a strong male got cancelled, changing the outcome ever more radically than the move to F2 did in Micronesia.
















