The plane company could not afford a airlock door on the side of the plane, so they built this weird structure then they destroyed it and got the passengers crashing through the cheap card board on top of the plane and if you are lucky you land in business class, or the best of all the roosterpit, then the lucky person that fell in the roosterpit, killed the pilots drove the plane to space and the card board box was fully assembled and it came burning down.
end of story