I would think it would be logged into somewhere which two teams were successful at pulling off the balance or attempted balance (1 point). Then the award would go to the team that pulled if off the most. The added difficulty of balancing a bridge with another robot that has little to no communication with you deserves an award. So the award that is given should reflect that ability to cooperate.
I too have seen teams win the award this year and wonder how that happened. Once you explained it, it makes sence.