Whats the point of Dynamic Q? To have people get boosted?

People q up as premade of 3-4-5, they might get people against them who are not even premades and the premade might have a gold in the party in a plat game and he actually doesnt even reach the average skill level in plat, but since he plays support and gets carried, he gets boosted to plat where he decides its time to soloq and he falls back to gold again :')

I feel like games are way more unbalanced after Dynamic q than before :'(