Your premise doesn't make sense. You're arguing against someone's subjective regard for risk. That's like telling someone that their love of skydiving is stupid because it's too risky. If the operator has a very low tolerance for risk - assume it's extraordinarily low for these illustrative purposes, as we're discussing a principle that applies regardless of scale - then that's down to their preferences. It does no good to argue against subjective preferences.
Your premise doesn't make sense. You're arguing against someone's subjective regard for risk. That's like telling someone that their love of skydiving is stupid because it's too risky. If the operator has a very low tolerance for risk - assume it's extraordinarily low for these illustrative purposes, as we're discussing a principle that applies regardless of scale - then that's down to their preferences. It does no good to argue against subjective preferences.