That's not an actual genre, and it makes no sense for you to continue to characterize it as such.
Black Metal Album: Burzum - Hvis Lyset Tar Oss
NWOBHM Album: Judas Priest - Sad Wings of Destiny
Sludge Album: Fudge Tunnel - Hate Songs in E Minor
EP: Pagan Altar - The Time Lord, Bolzer - Aura and Mercyful Fate -s/t
It's actually my favorite release from them. I definitely hear doom there (among other things to be honest), what would you classify them as?
Why isn't it a valid genre? For example, death metal is a subgenre of heavy metal, and isn't invalidated just because slam death and prog death are unrelated. Prefixed black metal is an umbrella sub-genre that represents all metal music derived from second-wave black metal, and on the whole I hate atmoshit, symphoshit, and depressoshit equally.
Dordeduh but no Negura Bunget?
Have you ever listened to Forefather? Probably the only straight up Folk Metal band I can stand.