That believe that is correct - I don’t see the SCIM server returning information about the ‘profiles’ associated with a Role in the GET request.
I can see the benefit of having that information included in the SCIM response for Roles however - I suggest you submit an idea for this here: https://ideas.sailpoint.com/
@adam_creaney, are there any plans to add this functionality to the API?
We are trying to build a web tool that allows for looking up a user, getting that user’s roles, and then viewing the entitlements that are contained in those roles.