"Well, that's at least one bit of reassurance. It means we can probably assume that the Night God doesn't have the power to kill us directly."

Maybe not much reassurance, since it obviously had quite a bit of influence, but life was all about finding the little advantages and making them work. If the Night God couldn't just wave a hand and kill everyone, that meant there were limits to its power. If there were limits to its power, then it likely had weaknesses. It was just a matter of finding them, and exploiting them.