Lop sided thinking. The first alliance has no more challenges after beating the fortress. Why would they even need to spend money on the game? their advantage is insurmountable at that time. All they have left to do is sit around and be turtles.
The first Alliance has such a huge advantage that being pushed to the edge would only temporarily hurt them.
It would give the alliance another incentive to work their way back and match up against a team that can at least provide some challenge. second place alliances are usually so far behind that it will take them as long to build up to attack the center as it would take for the old alliance to get back to the center.
I just don't get the Farmville mind set that doesn't want a continuously challenging game.