Very briefly, it is very important to know that the Governor in Council is not Parliament. It is effectively the cabinet, the government, the executive branch. I am not saying that is conceptually the wrong thing, because it is largely the executive branch that is responsible for foreign policy.
My concern is that it is an unnecessary textual signal that the Chief Electoral Officer, when he or she goes abroad, could be viewed as going there only at the request—literally as the envoy—of the government of the day, and I just don't think that's wise.