You aren't comparing like with like. A critical contingency Task Force level movement plan after a major operational failure, which incurred an unusually heavy burden, is not the same as mandating that same burden for routine, daily framework patrols within a kilometer of a static base.
We exercise this common sense proportionality all the time. If I'm going five minutes down the street to get milk, I prepare accordingly. If I'm leaving for five years, I prepare very differently. You seem to be arguing that all 5-minute trips need to be treated as if they might suddenly turn into five years. That isn't remotely realistic, even in conflict.
You may think you are being reasonable, but your argument is exactly the just-in-case mentality that needs to go. Of course we're never going to be able to prove 100% that everything will be always be fine, in fact we can pretty much 100% predict at some (undefinable) point it will not be. But refusing to take risk on unlikely and hypothetical contingencies adds real, measurable consequences which quickly add up to be worse than the hypothetical risks. It's better to be underequipped for, or say "no" to, the hypothetical tasks than to regularly underperform and fail the specified ones.