Gen3 VxRail Cluster DNS: "VxRail Deployment: Opting for Site Domain —Is It the Right Move?"

"For VxRail cluster Deployment, Domain is Necessary."  For us there's no plant domain involved. Our plan is to promote the same site domain (same hostname & IP address) to the FAT Floor and deploy the VxRail clusters. Once site commissioning begins, we'll decommission this domain. In other words, we won't transfer the domain controller to the site. Instead, we'll power on the VxRail clusters using the site domain. Is this the right way to go about it?