Vaalingrade
Legend
It's sadly less informed than that."Misreading" him? You mean his strong implications in On Writing that he strongly prefers free-writing to working from an outline, and that he didn't intend for the kid to die in Cujo? I think the problems you're pointing at are less a matter of not planning and more a matter of not being honest about the effects of the deaths they include. I think you can free-write a death in a story and not have it lie there like crap on the road, and I think you can have a death emerge in a TRPG's narrative and handle it well; in neither case does the death or its aftereffects need to be planned.
I'm talking about the apocryphal 'when in doubt, kill a character'. Which makes sense for a horror/thriller, but is less useful in say, cozy romance or yes, heroic fantasy. You don't just randomly kill off characters and expect it to be poignant.
And I think it's even less likely but not impossible when that death is by random meaningless chance or a god you can't kill for it putting his thumb on the scale.