Why does it matter that I have had an account for 8 days? I've been around much longer, just thought it was about time to contribute instead of just read.
If no attacking units are in play by the 3 min mark, they are either dead or attacker hasn't dropped them. If they are dead, battle ends much earlier. If they are still in the troop bar undeployed, battle ends at 3 minutes anyway. So this is already in the game.
If troops are still alive by 3 minutes, chances are defenses will not be there anymore or defenses will kill remaining troops. If defenses are not around, this just serves as an infinite timer for your 1 golemite to destroy 10 buildings in 4 different corners of the base without running out of time. If there are defenses left, it wouldn't matter if you get extra time because you don't get the 3 star anyway.
I hope you understand this.

