This behavior is by design as Active Roles currently only supports traditional Microsoft Windows shares. While manipulating home folders and shares Active Roles does not use an API that is compatible with DFS (Distributed File System).
Please note: NFS is a DFS protocol.
An Enhancement Request has been created to implement the ability to undo-deprovisioning of DFS hosts for shares and home folders. The Enhancement Request ID is 90577.
There is no guarantee that a specific enhancement request will be implemented in a future release of the product.