I think the point is the train of thought "There's a hole in the fence, so the lion could get us, but that can't be right or they would've been sued, or the fear of being sued would make them notice and fix it. So we must still be safe." A rejection of reality based on a different worldview.

It brought to mind the story about the two economists who see $100 on the ground. One wants to pick it up, but the other tells him not to waste his time, because if it were real someone would have picked it up already.