We saw shorter quarters in 2020 and it was the pits. Teams would kick 4 goals and then park the bus for the rest of the game.I'm absolutely on board with you here. If they're going to insist on keeping it at 20 minutes plus time on just keep the clock running, except for after goals. If the ball goes out of bounds or there's a stoppage in play it's on the umpires to just get the game moving as quickly as they can while the clock continues to run.
I don’t see it as an option unless something else fundamental is also changed e.g. no interchange or 16 a side.