Which to his point would be even more scary, but just isn't the actual real world risk with the way the things were designed.
Plus hypergolics are usually toxic on their own, even without mixing and/or booming, in a quieter, more-deadly-to-technicians way.
Spills and defueling and meeting well-intentioned but bad safety guidelines that require abundant fiddling were the real source of danger. More fiddling == bad.
Iirc, the fuels/oxidizers/reagents/ whatever-liquids mainly behaved like aluminum oxidizing, such that reaction with the tanks components actually created an increased buffer layer of oxidation/ protection.
Tank corrosion wasn't high on the list of risks after it was figured out on a per-chemical basis.
I think it's one of the aspects covered fairly well in (the great, often posted) Ignition! [0]