Starting a folder structure for a new project in Vault can be a timely process. From reproducing the folder structure, and in particular having to manually assign permissions to the newly created project structure.
Not having this feature has a significant impact on the process for starting a new project, particularly one which has a somewhat complex folder structure.
Due to this product limitation, it might actually put users/clients off from using Vault in the first place if there is such a time consuming project startup administration process.
Roll the Autodesk Vault 'Clone Structure' Add-in from Autodesk Consulting in as a permanent feature in Vault to aid in speeding up the project startup process.