When you factor in things like capacity restrictions in Perth, both NRL & AFL are down around 10% on their higher averaging season. Interesting that the minor comps (besides basketball which is going through a bit of a boom) such as Union, Soccer and BBL, which were on a downward trend pre-COVID, have had crowds continue to decline at alarming rates. All well less than half their peak averages. Also, ratings for NRL & AFL have held up but those other three comps have had significant drops.
10% is possibly the number of people that have COVID/isolating/worried, and they may well all return if/when the pandemic ends. TIme will tell, but it is safe to say that NRL is doing OK.