Lot's of people are heretics. I don't bother with pronouncing them to be, nor do I bother deciding if they are formal or material, nor do I damn them. It's not my job. I typically avoid those whom I feel are a danger to my faith, otherwise I will tolerate them so I can hopefully demonstrate through example, though I have my shortcomings, as we all do.
As for the quote from Pope Innocent, it's fallible. To pull a trick from your bag, it's no more binding than the quote I provided some time back endorsing the catechism as the source for teaching proper Catholicism.
If it is infallible, what a blessing for Benedict, he is being judged so much by yourself, I doubt God will judge him at all! :roll-laugh1:
All joking aside, you have to prove still that you are understanding each decree as it was originally declared, and that Benedict is contradicting them. We are not to 'understand them as children' or in an 'objective sense', we are to understand them as they were once declared, and that is why the church maintains that meaning, not you average lay person.