If it were your Council and after 18 years of it, would you send the whole mess out to a separate group so they can figure out what it is you actually said?
Intuition doesn't seem like the right rule by which to judge.
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A better question is: if the Church intends conciliar decrees to only ever have a strict literal sense ('the way the words read once and for all', as it is often affectionately put), why then, when given the opportunity to explain how she must be understood (the Vatican I passage you quoted), does she not say so?