Well, practically speaking for the sake of souls, Faustina is one of the two pillars of the devotion to the greatest act of Mercy the world will ever have seen (the other being Fr. Seraphim Michalenko...referred to in her diary as "SM")....in order to save as many souls as possible, even in this most undeserving of times. God used her to prolong the time until His justice MUST take over. I'd say that's anything but severe. She offered her life for that benefit to us. Through her Image's "blood and water which gushed forth from the Heart of Jesus as a fountain of Mercy" is that from which miracles will flow (are flowing). I didn't particularly like a few of the nuns who taught me certain truths but they benefitted my soul....outside of personality qualities. It's hard to understand that this world is defective and actually is the world ruled by Satan....Prince of this world.