Earlier quoted context omitted.
So I’m responsible for pushing the giant boulder at the top of the hill. The humans at the bottom who were crushed should blame the boulder, which happened to be moving.
I'm not sure what point you are trying to make.
If you only get copyright for the prompt you make, but not the output, then it's like being responsible only for the prompt, but not the output.
Ie he's only responsible for pushing the boulder up the hill. The fact that it rolled down from the hill and crushed someone's house "isn't his fault" (he doesn't get copyright on it).