Is blasphemous Music ok?

And I thought the OP was thinking of artists like Dred Zeppelin.  Actually, they are quite the musicians!  The real Zep' members were quite complimentary of their covers. 

Sorry to interrupt. 

Religion as worst thing ever?  Some numbers.  China Moa 60 million dead.  Russia Stalin, 14 million.  Cambodia Pol Pot 7 million.  That's the medal podium and just the 20th century, just internal civil wars over a secular principal.  I'm seeing a pattern there and no religion needed.  Oh the Crusades you say... tiny by comparison and the Church was the only entity that could unite Europe's nation-states to repel the Ottoman empire.  It was an existential threat that required something in common to rally them around.  

@tylermunns, agreed.  But zero death and destruction with billions of people on the planet is never gonna happen.  I'm responding to the use of the superlative word "worst".  It's a clearly biased point that uses that word, and that trope.  And demonstrably worthy of correction.

Back to OPs question.  If you deem it as blasphemous then you prob do not view it as OK.  If you are agnostic you prob don't see it as such, thus OK.  But agreed there are lots of "shock" intentions in the arts.  Shock sells.