Thats not what I said /wrote. 
I feel CS (2) or likewise comes up very often for all but the most dedicated anvils. If a unit is designed to hammer, it’s gotta have that +2 CS or better. (using bane chant, items, or whatever) . This means that nerve is worth far more than defense and why infantry hordes generally are a lot better for soaking damage than large infantry hordes.
It’s also why zombies are so much better than skeletons. See also the discussion here.