Download an entire backup of all files including those in the vault

Please provide a feature to backup the entire content of all files in dropbox (including the vault). The result might be a multi-volume RAR file for example.

 

It would be understanding if the resulting files would only be available within 24~48hours, and be downloadable only for a week after which the files are removed.

 

This feature is available on almost all Dropbox competitors, including Google Drive.

 

(PS: The current workarounds are totally not usable: downloading small subsets less than 250GB or 10,000 files at a time; and moving files out of Vault for the time being, which times out if it takes too long)