This is Irish journalism at its best. The writer is being willfully obtuse in pretending not to know that papal infallibility is limited to very rare and specific pronouncements, not every sermon or talk the Pope ever gives. And this writer, who would have heard many times growing up that Jesus died to save sinners, is pretending that he never learned that those same sinners have to repent and believe to be saved.
A pity your pope never mentioned that to the atheists and muzlims he addressed in his message...But they probably knew that anyway, right???