The appropriate edits have been made:
Château Pimo has been added to the map with the entry point located at 767 Chemin de la Garrigue.
This location has been linked to the corresponding place on Google Maps.
The dirt road has been corrected to be classified as a private road, so that Waze does not suggest routing through there.
As a result, it will no longer be suggested for navigation.
However, it will no longer serve a purpose and it is indeed possible to delete it, but with the risk that another editor might add it back one day without assigning it private road status…
As always, you will need to wait 2 or 3 days for everything to take effect on the map.