Ah, the beauty of traumatizing people through the not at all subtle art of obliterating someone from existence next to them.
See you can traumatize someone without butchering someone gruesomely, but it can be tricky, you can't just erase them cause the other party can't really properly grasp what happened, that guy just disappeared, but if you have a minor spectacle like Kaizer displayed than even if nothing is left after they're gone others got the picture.
On the opposite end of the spectrum if you butcher someone too gruesomely you will overload the other parties senses and shock them too much, they won't really grasp what happened properly and just be mortified/horrified.