I know merkins don’t like penalty goals, but they are intended to punish (and hopefully disincentivise) rule breaking. Teams don’t really get to take advantage of penalty goals when they are too far behind on the scoreboard, or at least they think they can’t - I was impressed with Melbourne’s composure in taking the kick when behind tonight. But then there is a benefit to the defending/infringing team in that they get to kick off from half way, forcing the opposition to bring it back off their tryline.
Would there be less cheating if, after a penalty kick, the infringing team had to drop out from the 20, or even from the tryline? Or would there just be a lot more penalty goals?
I suspect, in the moment, the risk/benefit assessment from the defender would always prioritise the less than 100% chance of a penalty over the certainty of a quick play-the-ball. It’s unfair to expect that calculation in the middle of a footy match, especially when it occurs during every tackle.
There are obviously deliberate penalties given but I’d say most of the time the penalised player is genuinely surprised the ref chose to blow the whistle.