well, i think the idea is interesting (in a dramatic world) in that these christian dudes adopt the weaponry and delivery of their satanic nemesis in order to try and strike back more decisively. of course, despite being within the context of metal sonically, idealogically it is, as you say, diametrically opposed....but then....although it seems easy at first to dismiss that because it's just christian and it's just a reaction, metal focuses broadly at it's base on the exact same thing, just against a different ideology. but really, regardless of the direction of approach or attack, isn't it still artistically credible if presented in an intelligent and thorough manner? I think it is, even if I don't listen to it. =P