Title says it all.
I get if its a balance thing for multiplayer since they're too cheap to be bulky af, unbreakable and cause terror. But in campaign they should cause terror. They're the actual, tangible form of body and existential horror right infront of you and attacking you with eldritch mutations happening that you cannot comprehend, and the average soldier doesnt become terrorized out of their mind but a basic, humanoid zombie that is just a normal corpse makes people equally frightened?
I guess the old world really is a different kind of place.