65. The homily is part of the Liturgy and is strongly recommended,63 for it is necessary for the nurturing of the Christian life. It should be an exposition of some aspect of the readings from Sacred Scripture or of another text from the Ordinary or from the Proper of the Mass of the day and should take into account both the mystery being celebrated and the particular needs of the listeners.64
66. The Homily should ordinarily be given by the priest celebrant himself. He may entrust it to a concelebrating priest or occasionally, according to circumstances, to the deacon, but never to a lay person.65 In particular cases and for a just cause, the homily may even be given by a Bishop or a priest who is present at the celebration but cannot concelebrate.
This is of course the standard and for good reason. The rubrics are broken always in the name of a "good cause". That is always the justification for disobedience. It's as American as Huckleberry Finn. I do not dispute the goodness of the cause, merely the timing for the pronouncements of that cause. There is no need for disobedience to the GIRM. You have used it to defend your own positions on this forum and rightly so. The American Catholic Church has selectively disregarded those portions of Sacrosanctum Concilium and the Girm which apparently lack the sophistication due a progressive-oriented liturgy.
I cannot see why at the end of Mass the priest cannot simply ask for some more time for the inspirational speeches from the nun outside of the Mass.
Finally got a response by email from swissinfo.com
"Dear reader,
Thanks for your email. It is our understanding that lay pastoral assistants are allowed to preach during Mass, but not deliver the main homily. They would not conduct the Mass.
Protestants cannot at present receive Communion in the Catholic Church. The Swiss bishops have said that Protestants should be allowed to receive Communion under certain circumstances.
Hope this answers your questions.
Regards,
swissinfo"