Has an AFL game ever ended 89-54?
It has. 89-54 has been a AFL final 3 times in 16,622 games. The first was Collingwood beat St Kilda on June 7, 1913; the latest was Hawthorn beat St Kilda on April 28, 2018.
That makes 89-54 the 1534th most common final score out of 6,607 that have ever occurred in AFL. One point away, 90-54 has happened 4 times and 89-55 has happened 6 times. At one point the score disappeared for 57 years, between 1961 and 2018.