Implementing issue that gives users access to any unix folder.
Release : 16.0
Trace on logonid showed that the users were allowed access because of R(UNI) SUPERUSER.FILESYS resource rules.
When they were prevented access to this resource, they were also prevented access to the zfs files.
Here is a link to the ACF2 Techdoc that provides information on the resources that govern access to zfs file systems.