Currently even if user makes change in node only in ClusterInstance CR, such as adding an annotation to bmh, siteconfig operator will attempt to update unchanged install CRs such as ACL and ClusterDeployment. As a result, user must explicitly requesting not to touch certain CRs in their ClusterInstance CR using suppressedManifests field. 

Ideally user should not need to know which other install CRs need to be NOT updated. Siteconfig operator should update only the relevant install CRs based on config change/diff in clusterinstance CR.