I think the fact that the folks running the Grammy's honestly had no clue what Heavy Metal even was tells us all we need to know. They're supposed to be the authorities, but they didn't understand a simple distinction between classic rock and heavy metal, much less the nuanced sub-genres within Rock / Metal. But on the up side, it was the answer to the first ever million-dollar-question on Who Wants to be a Millionaire and I knew the answer and my dad didn't, so that totally made it worth it for me.