There does not appear to be any "lack of humanity" attributed to the enemy in the story in question. There was just no purpose to fleshing them out as characters since the Germans were just a background upon which the story was told (and any enemy or war could have been used to tell this tale, you could even reverse roles and have a German as the protagonist pilfering stuff off of US or UK troops, It happened)
This comic was written in 1960 so it does not have quite the same all out "gung-ho" flavor of GA war comics. During this time frame Hollywood was starting to make complicated , less gung ho war movies too and the anti-hero westerns were just around the corner.
This comic was not meant to get you all patriotically worked up, it was meant to be ironic and leave you with exactly the kind of mixed up, WTH feelings that it left you with Crash. War, like any other endeavor of human existence is not simple. It is messy, complicated, morally ambiguous and always unfair to someone.
I knew a USMC LtCol in Desert Storm in 1991 who pretty much did what the scrounge did. He was a senior staff officer for the 3rd Marine Air Wing (so he never should have been near the battlefield, his job was to be at 3d MAW HQ back at the air base). A couple days after the Army and Marines had launched the ground war and rolled through the Iraqi positions in southern Kuwait, he traipsed along afterwards collecting souvenirs. When he got back to base he wrote it up in a report as if he had conducted a reconnaissance and put himself in for a Bronze Star.... and he got it!
(I know, WTH!, right?) At least something good came out the scrounge story, the only thing that came out the above incident was that an already not well liked officer earned himself the never ending enmity and disrespect of all those who served with and under him.
anywho , one thing I did enjoy in this story was the illustration 3 times (pgs 3, 9 & 10) of the German MP-44 rifle ( a German weapon not usually portrayed in fiction, though Brad Pitt wielded one in the movie,
Fury )
https://en.wikipedia.org/wiki/StG_44 Nice attention to detail, perhaps the artist served in WWII? The average person does not even know that rifle existed especially back then before countless History Channel shows about military stuff existed.