Right what I’m saying is internally it is 4x redundant and is designed to fail safe regardless.

Here’s an old (2006) publicly available version of ASTM F2291 which governs amusement ride safety, notably class 5 restraints (highest tier) must be either redundant (i.e. two distinct devices as you suggest, or fail safe) and have external verification, which in the case for these ones is a proximity sensor that gets flagged once the pawls have dropped in by enough teeth

The original design of those particular restraints has 4 separate pawls that engage with the ratchet holding down the restraint, any one of them is more than capable of holding the full force of even the largest rider. The newer versions are purportedly half ratcheting half hydraulic, but that’s not what was present on the Goliath in question.

The unlocking mechanism works on the entire row at once, so since it was just the one seat it’s probably not related to that.

B&M, the Swiss manufacturer also has notably not suggested any other customers close their similar rides pending investigation.