I cannot see any reason why non-admins should be able to access/use non-curated VRS Components in a virtual report suite.
The whole reason to use the VRS curation is to prevent users getting access to dimensions that shouldn't be used in the VRS. (as admins we have made a considered decision to prevent access - this needs to be enforced)
Allowing a normal user to simply click "show all components" and see every underlying dimension makes what should be a brilliant feature ineffective.
This is also being compounded by Adobe's decision to allow all users migrated to the experience cloud login to create new Workspaces (see Removed permission create workspace - WHY?????).
Issues like this are make things very difficult for us admins and unfortunately degrade the massive potential value of Workspace