So it is often slavishly sentimental and, despite moments of brilliance, ultimately fails as far as reaching out beyond the human perspective goes? I'd rather think of metal as being capable of reaching a similar type of intellectuality as Bach, romanticism ultimately fails because it focuses far too much on aesthetic and not enough on composition. Brahms and later Beethoven are exceptions, the Wagnerian school could hardly be considered as such.
Ultimately 20th century classical music, the dissonant and the minimalist has far more in common with metal than older styles of classical much, not just aesthetically, but also because the art they produce exists in similar circumstances, meaning much of the intent is the same. It's even possible to trace the heritage,
Minimilism ------> Tangerine Dream + Punk = Burzum
I am studying composition at uni at the moment, and I can gurantee you there is a large focus on 20th century music, also it is foolish to assume that Gorguts could have created Obscura without a fairly wide knowledge of this type of music, the similarites are hardly possible to overlook.