Yes, as has been explained by many people, long term players, Riot staffs, and Devs of every single Moba out there, putting in place systems to reward member's for their allies leaving is a godawful idea.
1 : Verbally force or abuse poor performing players to leave in order to gain the extra gold/items/xp
2: Giving bonus gold early or midgame can cause snowball situations where single players can become godmode in a hurry from the extra gold, especially champs that scale well extremely well with gold.
3: Several other good reasons why its a bad idea but I'm coming off a 12 hour workday and a caffeine/sugar crash so I cant see straight much less think of them, but they're out there.
Personally, I know it was bad in Warcraft 3, Losing teams would -kick the worst players on their team to pool their gold and items to their best people, creating omgwtfbbq players counterblast only by other pooled gold heros.