This has been an issue with Cubase since time began. No amount of complaining will change it.
This is the ONLY app I know of that permanently deletes data on a Mac. It should always always always be simply moved to the trash for the owner to deal with at a later date.
There is simply no good reason for this behaviour and deserves to be first place in the Half Integrated New Features list as the earliest poorly coded and unfixed feature of Cubendo.