Origin of flight evolved four separate times?

You've probably heard the saying that lightning never strikes twice. This means that highly unlikely events, if they do occur, won't happen again. But it appears that in a certain area of evolutionary biology, lightning has, in fact, struck four times!

Birds, some extinct reptiles, insects and bats could or can fly. But the anatomy and physiology of these creatures is substantially different and suited to flight in different ways. Evolutionary scientists who have studied the origin of flight do not claim that an ancient flying creature gave rise to all these creatures—instead, they propose something even more incredible: that flight has evolved independently four different times!

I wonder what the Wright Brothers, who were inspired by God's design of flying creatures, would think about the idea that flight originated on four separate occasions without any forethought or planning.