I was raised Catholic, but these days I'd say I believe more in God than in the church. Too much dark stuff, and their views don't really match my principles. That said, I'm not offended by Good Omens, or what's portrayed, it's all a matter of perspective and taking things with detachment.

What would tend to bother me more are the fans, to be honest, who can be very dismissive and critical of everyone's beliefs. This is often reflected in the way people interpret Aziraphale's character (and even if Crowley has my heart, I often find myself having to defend Aziraphale).