Being prepared for bad luck is also something smart strategists prepare for, because they might not know what will or could happen, but they are ready for consequences.

Thats why we have fire stations and hospitals, because its smart to be ready even if we dont know when or why.

In sport for example, nobopdy says some team arent champs because they were lucky here or there. Luck is how things flow, lucky bounce, the weather, someone in the wrong place at the right time etc.