agree on that too.
wouldn't be surprised if afl wanted 15min breaks anyway and the 20 min was just a ruse. I also makes sense to start with a more manageable 15min break and if that works ok then it could be reviewed. 10 seems too short, allowing 3mins off the ground then 3 mins back to ground and there is only 4min left in the changerooms. may as well stay on the ground like at the other breaks.