We have raised an Idea in Oracle Community (below is the link):
https://community.oracle.com/products/oracleanalytics/discussion/19536/restriction-of-data-in-reports-and-analytics-while-creating-data-model/p1
This is related to loophole in the report and Analytics which exposes HCM data.
Even though there are many views, likes and comments, there has been no action taken from Oracle neither any response.
Could you please let us know where to escalate or how to ensure Oracle takes next steps or even to look into this.