Why would they feel guily when it was obviously god's will?
Not all theists are gnostic, although, according to this forum's statistics, the ones who claim gnosticism outnumber the ones who claim the opposite. Regardless, claiming to be a gnostic theist and being one are not the same thing. To paraphrase (because I don't recall the exact quote and am too lazy to look it up) House:
You can tell me you put your faith in God to get through the day, but when it comes time to cross the road, I know you look both ways.
Theists who have faith (true faith; not that "I have faith that God has my well being in mind, but I'm afraid of dying"-type "faith" BS the vast majority of theists have) are few and far between.