They're meant to be free wins. Just because someone shits the bed and loses to them doesn't mean that isn't their purpose. And if a team can't play with a level of consistency that they drop a game to the free win teams, why would you even want them to be in brackets apart from fanboy-ism?
Yes, they are still really, really good teams, they made it to Worlds in the first place. But the point of Worlds is only the best few teams from each region even come, and half of them don't even make it to brackets. The wildcard teams are definitively a notch below the actual contenders.