Averse Sefira has never said they support the DLA or its views.I think you'll find that most metal musicians hate the internet because it's where the Crowd of retards always wins.That being said, the DLA doesn't advocate anything radical by old school underground standards -- we just write in the style of philosophers, essayists and literary writers from the golden age of Europe.
They thanked Spinoza Ray Prozak in the liner notes of Tetragrammatical Astygmata, but that doesn't necessarily signify an approval of the DLA specifically.
Averse Sefira refer to themselves as Hessians, too.