If you're relying on asking the LLM "pwease don't delete" then you're already in trouble. This kind of stuff doesn't work with people either and they generally exhibit actual signs of intelligence.
Sure; it's an example, I would never rely "Please don't delete" for real important data. However, we're being sold an idea that we should just let the agent do everything, so I think it's important to point out how utterly insane that idea actually is.