Extreme's "II Pornograffitti" album should be under heavy metal

Some of you might certainly disagree with me on this one but to my ears, I find Extreme's 1990 album sitting comfortably in glam metal AND heavy metal. Almost every track that's not acoustic nor a ballad has metal spirit, especially in the guitar riffing and soloing performed by Nuno Bettencourt. Even in other songs with more of a hard rock and/or glam metal sound, the hard rock of AC/DC is enhanced by the guitars almost reaching the heaviness of Metallica's Black Album. So I'd like to submit Extreme's "II Pornograffitti" to the Hall to be added to The Guardians as heavy metal.