No, quite the contrary, actually.
Religion is pretty damn universal, meaning there are a lot of people that most likely find it offensive. Really, if you can't respect someone's request to please stop using it because it offends them, at least in excess (especially when misused), then you're the one with issues, not them. It's pretty much common etiquette.
That being said, it's rather silly to point it out all the time (which is why the initial correction in this thread to take out the word is stupid).
P.S. This has gone stupidly off-topic. Rather pathetic, really. (Though, to be fair, I'm part of the cause)