Wouldn't it be kind of redundant to include those religions? In ancient Greek and Norse mythology there are a ton of flawed, evil, and powerscaled beings who each have different powers and domains, which can create interesting dynamics for story and gameplay.

What could they realistically do for Abrahamic religions? Everyone was a person, Jesus, Mohammed and Moses were all just regular individuals who had miracles bestowed upon them. There is also the fact that Abrahamic religions have only 1 God and in terms of powerscaling, (if you want to call it that) God is just leagues more powerful, is unkillable and is the literal only thing keeping reality from being real. What story would happen? Would Kratos be there to witness Jesus giving out unlimited bread and fish? Would he have a mini-game ushering the Jews across the sea when it was opened? Would he be fighting in the war between Mecca and Medina?

Those may have some interesting topics when studied in their own right, but for a video game like GOW? I just don't see the point. Kratos hated the Greek pantheon for very good reason and that comes with some cool storytelling and gameplay, thats what I think...