The RCC has sharply categorized matters of faith. There is currently a cadre of Cardinals studying points of possible heresy concerning Francis.
Okay. Have they included the remarks to which this thread pertains among the matters they are examining?
Not as yet. Francis made this announcement just today.
Well, if/when they do and subsequently determine that his remark is heretical, there
may be something to say about it; however, even if there then be "something to say" about it, it will still have relevance only for Catholics. The rest of us simply need not care what any Pope says about what is or is not a sin.