Why can “baqīta baqāʾ al-dahr...” serve as an effective ending to a panegyric?

Iqtibas, Tadmeen, Aqd, Hall, Talmih and the Art of Literary Openings and Endings

• It is merely a dictionary definition
• It has no relation to praise
• It abruptly begins a battle
• It concludes praise with an inclusive prayer