I just don't think bias is taken out of it... I don't.
Even the people talking about it talk about the picking of choosing of what gets covered based on relevance, which is poorly defined when it comes to spiritual manners, especially when, as someone else noted, Christians hardly agree on what Christianity means (or muslims on Islam for that matter)...
Take GhostWriter, he and I are protestant, but we have very divergent views on the matter...
So, I just don't know how it could be presented in the right light... and, let's say you or I come up with what is the right light, being as objective as possible... the other will likely disagree.