Thasmodious said:
No Kobolds can take a greatsword to the face. Neither can humans, orcs or anyone else. HP are, and always have been, an abstraction. They do not reflect "greatswords to the face". Being reduced to 0 hit points and dying reflects "greatswords to the face".
What he said.
Invoking movies and literature, how often has anyone seen a hero take a hit, be it from a gun, dagger, sledgehammer, sword, or what-have-you, and NOT immediately be terribly wounded? Regardless of the demonstrated power of the hero, a couple landed hits and he's panting and struggling to keep his feet.
I contend that HP have ALWAYS been abstract, and the new edition is no different. Greatsword to the face = dead or dying. Otherwise that level 20 fighter is going to stand there, hands folded and unarmored in front of the classroom while the student with the greatsword keeps chopping him in the head, and that's just dumb.
As for two armies of minions popping each other left and right: sounds fine to me. I think of Helm's Deep, and that old man with the shaky bow who fired too soon and drops a well armored uruk-hai on the front line, or those Civil War movies where lines of soldiers fire and lines of soldiers drop.
It seems reasonable to me that minions fall in one hit. That they necessarily DIE in one hit is what I disagree with. They are certainly out of the fight in mechanical terms, but I see that as the minion going "ow, that hurts, I think I'll stay down and bleed for a bit". It doesn't break believability for me, because I see it in basically every war movie, western, fantasy, scifi, drama, etc. movie where armies are killing each other or heroes are facing hordes of inferior opponents. If you don't have a name, one hit drops you and you stay down, dead or unconscious or just bleeding.