It isn't "whatever they have been called this week," it is what they have always been called. Words mean specific things especially in the Catholic Church. I fear some of our Cardinals and Bishops have been lax in their education. I pray the Vatican will continue to restate what must be restated for clarification.
"Extraordinary Minister of Holy Communion" is a new term. So is designating a deacon as an Ordinary Minister of Holy Communion.
If it takes a while for the terms to catch on, don't be surprised.