Has an AFL game ever ended 72-23?
Exactly once. On August 16, 1902, Essendon beat St Kilda 72-23, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 72-23 in league history.
That makes 72-23 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 73-23 has happened 1 times and 72-24 has happened 1 times.