It basically amounts to "All these saints were just dumb and didn't read Trent."
Emotion and sentimentality can cloud the reason. People, even Saints, can make "dumb" decisions that, from their point of view, seemed correct.
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Most of those who promote the super-BOD doctrine, start off with the sentimental mindset, "How can we define BOD to save the most souls?" But that's just a humanized, over-exaggerated use of God's mercy. God always balances His mercy with His justice....and He did so looooong ago, before earth was ever created, as Scripture says, "Before I formed you in the womb, I knew you." God knows from all eternity the circuмstances of our birth, our personality/nature and our entire life beforehand. So He ordains His mercy + justice to correspond with the graces He knows we will accept. It's an absolute mystery which none of us can comprehend.
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We aren't allowed to humanize salvation; all those who make it to heaven do so justly. All those who don't make heaven, also is a matter of justice.