JSON before the standardization had an obvious data model and specification: ECMAScript. (I don't think JSON was widely used outside of JavaScript back then.) ECMAScript is particularly strictly defined even compared to other language standards, so it should have been possible to extract the relevant portions of ECMAScript into a proper standard. Crockford didn't. JSON as specified by Crockford was not even a proper subset of ECMAScript until ECMAScript itself retrofitted its syntax.
Holding specific people responsible is pretty absurd.