Humans are not naturally born with wings, aircraft are a human invention, does this mean humans were never meant to fly? For ever fatal crash, there are many flights that land, these are achieved by human means, the aircraft is made of materials that came from the earth, so they are natural means, even if being born with wings is not.
Humans don't have wings, but they still found a way to fly. It's a lot more dangerous than animals flying, but its meant to be, it happened for a reason like everything else.