Planning and Prep is a must in almost every environment. I had something instilled early on in my life that has caused me to be an over planner/prepper. What I took away from this module is the fact that you can plan, plan and prep and there will be something that pops up that will cause an issue to arise.
But the point to plan and prep is to minimize the issue should one arise. If you weren't planning and prepping then the issue becomes chaos.