Oh I shouldn't have come across as brushing this off as no big deal, just interesting to think about the prevalence of it all things considered.You're not wrong. The rarity of it is truly astonishing. Nevertheless, it is still a little concerning. I'd be curious to know the frequency of non-destructive testing on some of the ride's parts. Some safety critical components are NDTed every season on some rides.
I wonder if/who would drive NDT requirements - the park, the chain, the state/country/authorities, the manufacturer. Not something I've ever really heard much about after all these years doing this.