I don't recall the specifics of those systems, but I think there's a certain point at which you can say "Okay, he's trying to kill you. Want to do anything to try to stop him?" And if they actually say "No", you don't really need to rely on the system to say "Okay, seriously? Fine, he kills you," do you? Or instead of PC death, threaten the things their characters love, or their wealth and reputation and such, or whatever.
I ran into this problem myself with Ghost/Echo, actually: a player actually deliberately passed his turn when shit was flying and I was just going around in order saying "Okay, what do you do?" because he felt that doing anything and rolling the dice was more likely to make things worse than it was to make things better. It was a bit disheartening as a GM, honestly.
I will admit, I like rolling the dice as a GM. I occasionally wonder, and this seems as good a place as any to ask: are there any games out there that have the opposite of this trend, so ONLY the GM rolls the dice? It'd be easy to invert the
"Players Roll All The Dice" variant for D&D 3.5, but I'm be curious if there's any that have been deliberately designed as such.