How is that? The pyro is there to enhance the song. Sure, a song, take KTF for example, can sound great in any situation. The fireworks just give it the atmosphere. It excites the crowd, really gets them going. It may be a little too dated if they OVERuse it, but if they use it discreetly like during KTF, or at the keychange in Prayer, it's more of an enhancement.

http://www.youtube.com/watch?v=USlSBotFzik#t=6m01s