I share the same concerns. I've had so many snakes take the plunge from there cage to the floor. Sometimes as high as a 5 foot drop. Each time it happens I'm always in fear that there hurt. Its been going on for me for over 10 years and to date all mine that ever hit the ground have been fine.
I have gotten real good at making that mid flight catch before they hit the ground.
Glad to hear it shedded ok. Tough things