Didn't Rugby League formerly use the version of finals that the AFL currently uses up untill 1999? It seemed that year both codes just shook hands and swapped finals systems
It was used by the ARL in 1995 and '96.
The ARL used a top 7 in 1997, and the NRL a top 10 in 1998. The present NRL system was adopted in 1999.
The AFL adopted the old ARL model in 2000.
So those calling for the AFL system to be adopted are actually calling for a return of the old ARL system.
From:
Finding the Premier Club
(a review of the premiership play-off systems since 1908).