Add tennant setting to restrict sharing from Private workspaces

Managing a Tennant full of public and private workspaces is made near impossible if users are able to freely share reports from their own personal workspaces. I am more than happy with Power BI Pro users being able to deploy their private reports, I am less happy from a company-wide perspective with them sharing unproven datasets from unknown sources. In my view, it would 'complete' the management experience if there was a tenant setting that would allow this feature to be disabled. this will allow more control over what data is shared, with whom.