Absobloodylutely! That's what I say. I'm not a Christian myself, but I can understand why God Botherers get so irritated by the way their faith is easily ridiculed by the secular world but other faiths, in particular Islam, is not. No one has the right not be offended after all, and Islam should be ridiculed, just as much as Jehovah Witnesses, Catholics, Hindus, Buddhists and whatever other faith you can think.
If we are, as many have argued, engaged in an ideological struggle against Islamism (however great), then for us to show deference to the special interests of Islam as a whole then it puts the values of Western ideology on very shaky ground. If the BBC had balls it would buy Little Mosque on the Prairie from the Canadians for a BBC2 night time slot.