It's weird because either 1) it's written to appeal to the anti-"worldly" crowd or 2) trying to actively promote Christianity; doing music as a form of missionary work.
Imagine I made a "Los Angeles band" and all my music was just promoting LA and talking about how great LA is and how much you should take a vacation to LA and I namedrop a bunch of local places and businesses and just cram it in everywhere I can... It would probably be pretty shit music, wouldn't it?
I've listened to good Christian bands but the best tend not to push it as a central theme in their music. Every so often there's something that has a Christian message or themes but doesn't come off as cultish bullshit, like some stuff from Immortal Technique and Nina Simone (just happen to be at the top of my mind ATM); but it's really rare and it's usually very intense / meaningful / personal which carries with it an authenticity that's usually lacking from Christian music.