You really can't achieve reasonable freedom from risk (Safety) by assuming equal "what-ifs" without data to back them up. Breaking a windshield is minor and of course it missed hitting somebody on the head based on the area exposure vs occurrence loss rate
Parts that float to the ground under high windage loads have historically low risk of severe harm. Of course they are not acceptable occurrences and some level of control of the occurrence need be made. However I didn't think that this thread was about the adequacy of the repair incorporation