Understand the concept of clusters and why ownership is important. I am used to XenServer where the active database is actually cached on each host (instead of a server off who knows where, that could possibly be updated without the hosts knowing) - so I guess this why this isn't an issue with XS?
Given the different architectures here, and my dev/test environment, sounds like DRS with a low setting and a proactive approach on putting a host into maintenance mode for a evacuation for all VMs before shutting it down is the way to go.
Thanks for clarifying that I wasn't missing anything and for the advice.