Earlier quoted context omitted.
Do you think that a bank or a government would've handled fixing such a flaw as well has optimism did? All tokenization schemes are ponzi scams including USD, it's just that some use violence to stay relevant, and other use bug bounties.
Banks or stock exchanges would just revert any bad transactions like they do with most scams, thefts, or accidents. It is built into the current system by design.
I'm not saying it's a better or worse plan than whatever might happen under an alternative system, but just that it's not exactly a clean solution either.