It's a very technical clarification. It has always been the intent of the drafting of Bill C-59 to allow this. The original wording, which states “The minister or the designated person may, upon the request of the Service, authorize the Service”. It seemed to imply that it couldn't be the director or someone in the service. This amendment is just to clarify that the designated person can be the director or someone in the service. It's a technical clarification based on the drafting wording.
On April 24th, 2018. See this statement in context.