I, too, have never heard of anyone having a broken/cracked sunroof. I've had sunroof's in all my cars since 1984.
I have always worried about getting caught in a hail storm while on a trip (towing or a car trip).
I think you will have a higher chance of a broken windshield or headlight lens before a cracked sunroof. But, then there is Murphy's Law.
Good luck and safe travels,
MM.
Mr.Mark
2021.5 Pleasure Way Plateau FL Class-B on the Sprinter Chassis
2018 Mini Cooper Hardtop Coupe, 2 dr., 6-speed manual
(SOLD) 2015 Prevost Liberty Coach, 45 ft, 500 hp Volvo
(SOLD) 2008 Monaco Dynasty, 42 ft, 425 hp Cummins