As a player I hate that trope. I do not want to come up with a unique death for every mook I drop.
I dislike being put outside my comfort zone. When GMing, I am very descriptive. I want a break from that when I'm playing.
My usual response is something along the lines of "They're not dead because they're not soap bubbles to pop with one hit. They're lying on the ground slowly bleeding out."
One of the things I hated most about 4e was that minions popped like soap bubbles when Ace threw a gold piece at them.
I prefer NPCs and PCs to be playing the same game. In my games they do, character class, class abilities, death saves and all.