It would anyway be quite difficult for us western people to sympathize with the state of mind and moral values of WWII Japanese soldiers. From our perspective, their treatment of civilians, POWs and the total lack of consideration for their own losses simply cannot be grasped. Rather than attempting to make the enemy look "normal", The Pacific proceeds to slowly downgrade the behaviour and morality of the "good guys", especially in the later episodes. I liked this nihilistic approach better, whereas Easy Company always remains this bunch of heroic comrades who, despite their occasional breakdowns and mistakes, always seem to make the right choices given the circumstances.
Yeah, you got a point. I guess that more empathy than what is already present would destroy the immersion factor.