The Treasure Table is designed for hordes for a group of Player-heroes. In most cases, the Company defeated the monster who had the horde.
Bard defeated Smaug, and brought his army to The Lonely Mountain. Thorin send word to his kinsmen, and the Dwarves' army came to the Lonely Mountain. The Elves wanted their piece of the action as well. That's a lot more shares than 13 Dwarves and 1 Hobbit.