Currently, to include your Office 365 backups in a copy job you'd first have to backup the storage (or server) where those silo-ed backup files are stored with VBR and then include those new VBR backups in a copy job.
In order to get them back, I imagine you'd then have to restore the storage through VBR, import it into the Office 365 console, and then do another restore within that console.
As fast as Veeam products are... that's going to be a long RTO

A tangential request, as I guess it gets to the end goal of this request, is support shipping O365 data to dedupe appliances (like the HPE StoreOnce.)