That isn't really a good defense. An intelligent creature (i.e. a human) will recognize that it lacks context, and ask probing questions to get more information. An LLM just boldly goes down a path with only a fraction of the information, which is yet another proof they aren't actually intelligent.

"Thinking" models do that, now. They either search for the context (token usage goes brrr...) or ask for more information before going further.