Earlier quoted context omitted.
The religion itself presents God as doing good; pagan religions don't have such framing, thus the classification "morally ambiguous."
>The religion itself presents God as doing good Does it? I seem to remember a part in the Old Testament where the Abrahamic god orders his followers to commit genocide against some other tribe. How is that "doing good"?
Norse religions, on the other hand, make no such claims about their gods. Within the context of Norse beliefs and religious moraloty, Odin has done evil things, Loki has done evil things, etc. That is why, within their own system of beliefs, the gods are morally ambiguous.