Both 3rd and 4th place teams have already said that if they were to find themselves in the exact same situation ad the end of next season, they would give a walkover in the final match. If I were them, I would too.Edit: So would the team that is currently 6th (obviously if he were to in the 3rd or 4th place teams' shoes)
But you are forgetting that the BB-players are pros and not amateurs like the ones you talk about xD