To the old Blut Aus Nord, the black metal in music is a feeling, and not to be associated with acts of criminality (also often synonyms with trueness); a feeling one can achieve by experimental craft, the latter being the character that many critics or enthusiasts praise the band for.
Blut aus Nord's seventh full-length achievement displays long, highly keyboard-based and melancolic litanies, that after a while get monotonous, cold and expressionless. I hear a band that strives to take its "distances from all other black-metal acts", although still wanting to be a part of the club. I hear a band that persists in sounding 1997 (Emperor, My Dying Bride, Dimmu Borgir at the time), or sounding like themselves in 1997, thus denying evolution.
The musical prowess I hear here and there should be a manifestation of solidity; instead I think BAN, seeking themselves so much, fail to communicate.