Worst argument ever. It's not a "target sport"? What the hell is a target sport? Since when is this a categorisation by which people determine whether or not its okay to get a point for missing? Surely if a target sport is one where the only activity in the game is trying to hit a target, it'd make even less sense to give points for missing, since you're failing at the only necessary skill.
The fact is, there are two ways to score in AFL. One is to score a goal by kicking the ball through the centre of the goal, the other is to score a point by getting the ball through any part of the goal in any other way. For instance, if the ball comes off your hand through the centre of the goal, it's still only worth one. So it's clearly not an instance of "six if you get the goal and one if you miss", it's just two different methods of scoring, much like plenty of other sports I could name including both rugby codes, american football, "target sports", basketball and so on.
Attacking a sport you clearly know absolutely nothing about as an "organised farce" is just absurd. It's a game with 150+ years of history which is unrelated to pretty much every other game in the world (obviously excluding gaelic football, to which it has some similarities), and if you intend to criticise it it'd be worthwhile having a clue what you are on about first.