While cloning an ESXi boot device in order to speed up the deployment of servers has been a practice for some customers, this workflow is not at all supported by VMware. This is because our ESXi’s operating system expects that each server will have a unique System Universally Unique Identifier (UUID). Cloning an ESXi boot device will also replicate that System UUID, which can lead to VMFS corruption
Above statement from the below KB Article, hopefully will prevent/scare anyone to do follow this method.
https://kb.vmware.com/s/article/84280