One option is that the human beings miraculously survived the plane crash.
Another option is that as they were falling, they went through or were diverted into another plane of existence, possibly a spiritual realm, but they were still physically alive.
Final option is that the passengers fell to earth and did not survive the plane crash. It was their souls that carried on in an after life which looks real.
One: alive on earth.
One: alive somewhere other than earth.
One: dead in the afterlife.
