This would be for cases when a cluster cannot self heal, and a member of the technical team needs to do a manual intervention. Their activity may show up in the logs after the fact, but there doesn't seem to be a way (currently) to have a proactive notification go out when the update is being made.

Having such an alert would give customers transparency/visibility into what MDB teams are working on, allowing them to focus their attention accordingly (ie. if customers encounter an issue but are alerted that the MDB team is already working on a fix, they'll know that they don't need to work to address the issue themselves).