I think that's changing now. Plenty of modern black metal features competent to fantastic drumming. Kriegsmachine is an excellent example.Black metal albums rarely have drumming that stands out, that's usually by design I suppose because it's supposed to create an atmosphere via repetition, but I love the drumming on Thousand Swords. The cymbal work makes it sound like an actual sword battle is going on throughout the record, it's fucking fantastic.
Straight to my 'check out' list.