This actually started way before, during the Blues era. Blues were considered "Devil's music" back then, and Rock music is heavily based on Blues.
But I have seen for example Skid Row in their debut album credits, in the Thanks list mention "God", or David Coverdale from Whitesnake, say "God bless you!", at the end of a Live Set. And so many others...
Actually it seems like there are more believers in the Rock world than in the Pop world. So why this claim?
Most Helpful Guy
You know, in the end this is just representative of the time-honored tradition that is the misunderstanding of youth by adults. I remember growing up and seeing the "KISS" posters and hearing parents say that the band was evil (with their makeup!!!) and the claims that the title was an acronym for Kids in the Service of Satan or something. But you listen to the music now, listen to the lyrics and it's so ridiculously tame.
So yeah, I don't know what people are thinking but I assume that I'm just a couple years away from being as crazy as every other generation of 40+ individuals.