It's no longer about disaster recovery
In the old (static) paradigm, change was something rare, something to allocate to special disaster recovery scenarios. In a dynamic system, change is a day-to-day occurrence. In this environment, all aspects of your system, human and technical, need to be capable of managing change.
Understand how Kubernetes adapts
Kubernetes is designed for change, it has many built-in behaviours to manage situations. Your operations teams need to experience the system in real life to know how to stay in control in more difficult situations.