I have a fundamental problem with the AFL Score Review System in general, and the Umpires Call aspect in particular. When a goal umpire states that I think it was touched or I think it was a goal, what he or she is actually saying is that they dont know. In these cicumstances the assumption should always be that it is a goal unless the VR can conclusively prove that the ball was touched. In other words, the benefit of the doubt should always rest with the team that has made the play not the umpire who effectively doesnt know and has provided a best guess only.
IMO the discretion of the goal umpires in these circumstances needs to be taken away from them, in the same way we need to take away the discretion of the field umpire when they make insufficient attempt to keep the ball in play decisions.
This would add a lot more certainty to the rules, and stop this plague ravaging our game of crucial umpiring decisions dictating outcomes.