Trolls in champ select...

Is anything being done to stop trolls in champ select?

For example, if my top laner tells me to ban yasuo and I ban poppy instead, then decides to play soraka mid with smite and literally tells us she's going to intentionally feed, why should I have to suffer a queue penalty and lose the LP? And better yet, lose the promotional series I'm in?

We have the remake function in game for afk players, I think Riot should add a remake funtion in the CLIENT where if all 4 other players vote yes, you get the chance to re-queue.