I guess my question would be, "How does disclosing one's lack of belief in one of the tens of thousands of belief systems sound like an invitation to a fight?"
The writer, like a couple of others recently positioned their works to coincide with religious events and designed titles meant to provoke outrage among the easily outraged; this is what I mean by picking a fight.
No rational person can logically conclude that gods or demons are in charge of events, but it isn't necessary or wise to insult your audience if your intent is to persuade.