Superpilot and Check Airman, I'm a bit surprised by your comments. By our FCTM for the A321:'' When landing performance permits, the best combination to reduce fuel costs and brake oxidation is: Conf 3 + REV IDLE + Autobrake LO''.
I don't understand the higher workload. I'm talking about operating on runways ranging from 3300 to 4000 meters on average at sea level. Unless very heavy you seldom need to override the autobrake if ON to brake more. I usually disconnect it earlier to keep the aircraft rolling to exit on the last high speed taxiway.