Boo! Yes boo goal reviews every time.
The AFL's knee-jerk technical solution to a score validation problem is ruining it for the crowd and those watching the footy on their screens. The interminable delay takes away the goal-scoring experience.
The issue about umpires being unsure of goal, point, mark or out-of-bounds is usually (imho) a result of the umpire not being in the best position to judge the score. This is a people problem. It isn't a technical problem - "Oh we don't have the right camera angles, the camera definition isn't great enough and we don't have enough cameras at every ground."
Occam's Razor: Have another goal umpire. Or two. Or three. I don't care how many they have. But by having an umpire in the right position to judge the scoring attempts will produce much more immediate decisions. If, on the rare occasion, you have a disagreement with the umpiring team, go to the video review. This will keep the game flowing.
The goal reviews are a blight on our game.