After Augustus gets sucked up Willy Wonka knew those children would die in his factory.the shoot, they all hop on board the boat through the tunnel of doom. The boat doesn’t have two extra vacant seats though.
It was designed with prior knowledge that they would lose two participants before that point.Later, they drive a cream spewing car with only four seats. Did they have another car waiting in the garage in case the others made it? Of course not.Willy Wonka uses children to make his candy.