If those are his words, then no. It's quite clear. If there was any debate before--which there wasn't--then it was answered by Hamdi.
They are his words, but it's a shame that he never had the chance to learn just how wrong he was since he died before you could set him straight.
I'm not sure how it could have been answered by Hamdi, either. In Hamdi v Rumsfeld habeas corpus again had not been suspended. Not by the president. Not by Congress. The matter before the court was whether a U.S. citizen could be denied due process not who suspended it. The Court ruled they could not.