You're not wrong, but I don't think I'd find it difficult to move through the space of my gnomish friend either, but the gameworld calls for difficult terrain for this nevertheless.

When I put on my visored helm and shoulder my 50-pound haversack, I have to use slightly more caution to keep my footing when I step past my 300-pound dwarf buddy who just passed out next to me (and dropped his sword and shield there as well), but I still wouldn't describe it as difficult. My loxodin friend...yes, but probably not the dwarf. The gameworld calls for difficult terrain here nonetheless. "The space of another creature, whether hostile or not, also counts as difficult terrain."

Now what I do find difficult is this: I sometimes spar in the ring with other knights-in-training for practice. Our trainer harps on footwork, so we learn to move in a rhythmic pattern around the 10x10 ring, keep our chins tucked, and keep our forward foot pointed towards the other guy...all while focusing on our opponent's good eye (that's just a fancy fighting term for a person's dominant side in their stance). But that's not the difficult part. The difficult part is when our trainer, always pushing us to be better, shovels dead pigs into the ring. They're not big animals. 70 pounds, maybe. But I don't know if it's the sweat in my eyes after round two or if it's the way a pig bleeds that mentally fucks me up, but I can tell you this: It only takes one or two pigs on the canvas to turn your precise footwork into a broken ankle. I'm a black paw, too (another fancy fighting term...it just means I am right-hand dominate but I stand like a South paw), so I have a blind side when I side-step to my opponent's weak leg). Now I don't know if the gameworld considers a dead pig a creature or not, but I don't see how it's much different than my passed-out dwarf friend. Similar smell, to be sure.

Anyway, that's what I, a normal human, think about the matter. I can even imagine what it's going to be like when we get sent off to fight in the Blood Wars. I've never seen the dead body of a person before, but for some reason I imagine they bleed a lot like the pigs.