[@poog the pig] The thing is that you're wrong. From what I got, child sacrifice was ESSENTIAL to the plot in this case. It was BECAUSE they sacrificed children that they were able to create and enchant their weapons and armor, and in their belief, protect their tribe and people. 

Even with that, and not any other justification, I'd say that there's no problem with it being in the post and ofc it belongs in the story. There would not be any story if no sacrifices were made.