Re: Deacons and the Motu Proprio?
I have no problems with deacons.
That said, a priest IS a deacon. He doesn't stop being a deacon anymore than a bishop stops being a priest.
It's not "playing dress up" to have a priest exercise the diaconal function at a Solemn High Mass (obviously, in the absence of a man who is "only" a deacon).
That priest remains a deacon until death, just as a bishop remains a deacon, and a priest.