The AEM superuser 'admin' account can perform certain functions within AEM. It cannot be delegated to a group such as 'Administrators'. As you mentioned, perhaps this would be addressed by the internal enhancement to extend this access to the groups configured in Apache Sling Web Console Security Provider.
e.g. keystore/truststore functions
only the 'admin' user provides some functions in AEM.
Allow 'admin' functions to be delegated/managed by other users.
Environment Details (AEM version/service pack, any other specifics if applicable):