Let me run a couple of scenarios for you.
1. We finish third on the ladder on percentage, the difference between us and Port Adelaide in second is less than the percentage they gained in beating Carlton over 20 minute quarters, as opposed to us who played them over 16 mins. Would that be satisfactory?
2. AFL announces we go back to 20 minute quarters from round three. After round 13 there is an outbreak of COVID-19 at Trent Cotchin's kids kinder. He tests positive. The entire RFC is then required to quarantine for two weeks, missing the round 14 and 15 matches. The AFL presents two options for Richmond, either share the points for the two games or play an extra game on the Wednesday after rounds 16 and 17.
If we stay at 16 minute quarters we have the flexibility to deal with issues like that without compromising the competition. You can simple suspend the season for a period of time and then come back with a compressed format. No-one is going to agree to risk their players in a compressed format with full time games, not least the players themselves.