Masters sure loves his cumulative totals which is hardly surprising given, along with SOO, it's the only area where the NRL compete. However, I bet he wont compare finals ratings. Of the 3 finals played at the same time over the weekend the AFL won all easily. In fact they won Saturday night by over 50%, 1m to well over 1.5m.
Comparing the cumulative ratings is meaningless given the massive difference in how both codes are broadcast every weekend. The networks know the true winner, hence they pay more for the AFL.