Indeed. And your point being?
An observation and question.
Why did you bother holding any of it.
Why not draw equal attention to the entire quoted text?
Hopefully they did make appropriate changes since their certifications previously missed so much.
I bolded what I considered to be most relevant as far as design safety rather than human errors, which will always be with us. Safety regs are always written or modified on the basis on experience. The need for possible redesign of the relief valves so the wrong ones can't be used, and/or the inspection procedures to reduce the chances of that, will undoubtedly be addressed by the NTSB in the final report, just as recommendations were made in the earlier H2 tanker accident report about modifying the valves and protective caging on the tanks. We're talking about hazmat here; what does sometimes cheese me off here is the idea that has more than once been peddled in this thread that H2 is uniquely hazardous, or at least much more dangerous than other hazmat that we routinely haul around, store and use.
For instance, if you read the summary (or the entire report) of that earlier H2 tanker accident, it involved a collision between the tanker and an erratically driven pickup truck. The tanker rear-ended the pickup, which then departed the road and crashed. The tanker rolled over, and the drive died due to injuries sustained in the crash. Several of the tank valves at the rear of the trailer were damaged, and an H2 fire started. The fire never got to the cab, as the H2 went straight up. Is this uniquely dangerous? Let's look at what was happening elsewhere.
The driver of the pickup was seriously injured. Both drivers were eventually removed from their vehicles. However, In exiting the road, the pickup ruptured a fuel line and a gasoline fire, fed by its own fuel tank and completely separate from the H2 fire, started and destroyed it. NTSB wasn't interested in that fire, because car gasoline fires are routine and the risks and actions to be taken well known, yet both H2 and gas are flammable hazmat.