Has an AFL game ever ended 72-66?
Yes. AFL has seen a final score of 72-66 6 times. It first happened on June 8, 1908, when Essendon beat Melbourne, and most recently on July 28, 2017, when Hawthorn beat Sydney.
That makes 72-66 the 342nd most common final score out of 6,607 that have ever occurred in AFL. One point away, 73-66 has happened 3 times and 72-67 has happened 6 times. At one point the score disappeared for 65 years, between 1952 and 2017.