Why are diamond and plat players allowed to play with bronze players in team 5v5 ranked
I understand the MMR system, and I understand the ranking system, but there is no reason when everyone on a team is bronze, or silver, or even unranked, that they should be put up against diamond or plat players, where they have almost no hope of winning because of the skill gap. Don't get me wrong, before level 30, I even beat a couple of diamonds and plats myself, but in ranked it's just stupid. Why should sometimes a team with 2 platinum or higher players be allowed to fight bronze and silver?