If your argument is that God's values in the book are a reflection of Israeli culture at the time because they are formed from the imagination of authors immersed in that culture, I can see the sense in that. The iron age Israelites liked killing little children, so of course, their god liked it as well. As cultural values shift, the Jehovah character becomes progressively less bloodthirsty around the New Testament times.
In the context of the story though, the character of Darth Jehovah is meant to be immutable and timeless Until heaven and earth disappear, not the smallest letter, not the least stroke of a pen, will by any means disappear from His Law until everything is accomplished. Going with the conceit that He is timeless and immutable, "It's ok cause that was just what all the kids were doing at the time" doesn't really fly as an excuse for his villainy. Even for the early Iron Age, the "see a baby, stab a baby" policy was particularly egregious.