The whole advantage thing needs a ‘use it or lose it clause’ IMO. These ridiculous situations where we see multiple phases and a 50m territorial advantage come back to the mark because there wasn’t a strategic advantage have to go. I’m not sure what the actual rule should be but that bullshit has to go.
I agree that we should have more concrete rules around advantage.
I like it that if the play is in the middle of the field then most referees will blow the whistle after a couple of phases of going nowhere so time isn't wasted.
I don't like that advantage inside the 22 is basically endless. Why should this be the case?
There is also a lot of inconsistency around when advantage is called over and it would seem that most referees will bring it back to the penalty if they didn't already yell out advantage over. I think this should cease. It should be possible to say that advantage was over after the event. If a break is made downfield the advantage is going to end very quickly so it is entirely plausible that advantage can be gained and then the ball turned over before the referee can call advantage over.
Overall, I think the game would be improved if less discretion was allowed around advantage. I also think the defensive team should get some reprieve when defending their tryline. Give them a reasonable chance for advantage to end so that they aren't defending for 10+ phases and still go back for a penalty so attacking teams know that they either need to roll the dice with a cross field kick or similar or that continuing to pick and go will result in it being advantage over.