Without getting too caught up in this; why do people need to point out their religion in their band activities? I don't call my band atheistic metal, I guess I just don't get it.
I agree with you, it's a strange thing. At least in the case of my band, we never really sat down or put any thought at all into whether it would be more or less appropriate to call ourselves a "Christian band"...it just kind of made sense to "admit" it. We obviously care just as much about the musical side of things as any secular band does; I think whenever
any band lets something get in the way of the music, then the quality of the band will start to suffer. Anyway, I've thought about your question a bit, and I think the best answer I can give you (in my case) is this: if we don't outwardly admit to being a "Christian band", people are going to read/hear the lyrics and notice it anyway, so it's then inevitable that we would get the question "Are you guys a Christian band?" all the time...if we then say "no", then it seems like we're trying to hide it or are somehow being strangely touchy about it. It also seems like we would then have to define what our opinion of a "Christian band" actually is, and then somehow figure out a way to explain why we're Christians in a band, who write about things from our Christian worldview, but are still somehow
not a "Christian band". It just seems to me like it would become needlessly more complicated trying to say "no", than just coming out and accepting it if people want to call us Christian. The bottom line, is that it doesn't bother me to be called a "Christian band", because I'm just as serious about music and songwriting excellence as everybody else is, and the music itself is how we're going to be primarily judged by music listeners.
I guess it's also kind of fun to help break the stereotype that all "Christian metal" sucks
Hopefully I've answered your question well!