“הקורא הלל בכל יום וכו the reason is that he only recognizes the great miracles and doesn’t realize that כל הנשמה תהלל י-ה, as the Midrash says, על כל נשימה ונשימה תהלל י-ה, we are suppose to praise Hashem for every breath take.
That’s not the reason and who told you that he only recognizes the great miracles? The one who only recites it by the actual ‘great miracles’ really means it always whole the one reciting it every day only recognizes the great ones!? That’s upside down.
The Maharal actually explains it’s because he considers everything a miracle and doesn’t recognize the order that Hashem created.