Ah, the comparison between Breath of the Wild and Horizon Zero physics.
HZD has no physics, so the enemies are creatures with no organic movement, because there is no realistic movement physics, and they disappear in a cloud of smoke because there is no physics applied to their bodies to make them appear dead.
However, Zelda has physics in the animation of enemies that react to what you do, they lose parts of their body and react to the environment while you kill them by tearing off pieces of your body.
No, wait...
LOL