Quote: West Leeds Rhino "Then he can run in field. If it is being contested, the attacking team lose out because they can't tackle him and what should be an advantageous position dissipates.'"
Not logical.
The kick only creates a POTENTIALLY advantageous position.
If the attacking team follows it up and contests for the ball, and if the attackers are better than the defenders, then they get the ball, and score a try.
If the Kick is not well enough placed to allow the attackers to contest it, or if they do contest it but the defender wins the contest and catches the ball, then they get the ball and get a tap on the 20.
You are talking as if a kick into the in-goal is currently a clever and wonderful piece of skill, which should be rewarded.
In fact, it isn't. It is either a POOR kick, or at best, a high-risk strategy. A GOOD kick is one that falls just SHORT of the in-goal, because that gives the attackers more options and will never lead to giving the defence a 20 metre tap.
Anyone who kicks a ball that will land in-goal, either didn't mean to (in which case it was a misdirected kick and not deserving of a reward) or knowingly took the risk that by doing so, a de-fuse would surrender possession to a 20m restart.