Remember: this is not a cryptocurrency problem, it's a banking problem. This guy created a literal bank. People deposited funds in it. Instead of simply being a custodian, he took the money and "invested" it. And lost it all. I wish this sort of thing would happen every time bankers screwed things up. Instead the government bails them out.
Pretty sure banks get audited to prevent this exact scenario from happening.
He is not wrong technically but it happened so he obviously isn’t correct either.