In the past, I'd have agreed with you. Now with streaming I'm less sure of Foxtel/Kayo being a necessity for a broadcast deal.
3 games on 9 FTA (Friday and 2x Sunday)
3 games on 10 FTA (Thursday and 2x Saturday)
3 games on Paramount+ or Stan Sport (2x Saturday and 1x Sunday or 3x Saturday)
Example Schedule:
Thursday 7.20pm (Ch10)
Friday 7.20pm (Ch9)
Saturday 1.45pm (Stan Sport)
Saturday 3.10pm (Ch10)
Saturday 4.35pm (Stan Sport)
Saturday 6.10pm or 7.25pm (Ch10)
Sunday 12.10pm (Stan Sport or Ch9)
Sunday 3.10pm (Ch9)
Sunday 6.10pm or 7.10pm (Stan Sport or Ch9)
The Sunday Stan Sport game (12.10pm or 6.10pm, as the other of the two will be on Ch9) can be moved to Saturday 7.25pm if needed.
So the big money would come from one of the FTA players .... that'd be a balls & all play by the owners, e.g see 7s owners & Boral, https://www.abc.net.au/news/2021-07-07/kerry-stokes-wins-his-bid-for-boral/100272106