As was mentioned above, this would only encourage clans to start putting their townhalls outside at the top, have all members attack both THs for max loot, and then surrender, start over, rinse and repeat. It wouldn't start out that way at first, but as the word got out, there would be clans going non stop just for the loot. The war prep, battle day, and cool down for people leaving clans early is to prevent anyone from earning any loot faster than 2 days at a time. In theory, ending a war that is basically over makes sense, but in the long run, it has negative effects.
