I didn’t say that he the pope said they ought to be admitted. Only that that he suggested the possibility of it should be investigated.
The Pope did not come up with this discussion out of the blue, or on a whim. It is obvious that this is an issue which has been of some importance, for some time, whether or not you, I, and the rest of the folks in the pews were aware of it.
There are many who cannot fathom why it even needs to be discussed; and the answer to that is because there are a series of issues and ramifications surrounding the main question.
People tend to think linearly, and not see that there may be issues related to a question that have occurred to others, although not to them. Further, there may be a need to reexamine not just the central question, but peripheral issues also.
Once upon a time these matters were dealt with in a much more restricted fashion; that is, they did not receive the public viewing of the process. Seeing the Church in action horrifies some people, but there is nothing either in Tradition or in the Gospels which says that decisions the Church is making need to be done in private. Some may, but there is great value in some issues being dealt with in the open, in view, with all of us watching.
It appears that not only the Pope, but a goodly number of others in the hierarchy have felt this issue and its attendant other issues needs to be aired openly.
And the Holy Spirit still protects the Church from error in Faith and Morals, in spite of all the angst and all the electrons which have been mightily discomforted by the calling of these meetings. God is still in charge.