Ppl say get rid of all the techhy bullshit and simply let the refs rule, and what they rule on is final without any backlash from any quarter what so ever. If your team gets ripped off because the opposition lost the ball, but still get the try awarded, one day down the track your side will benefit from the same scenario.
Years ago when an obvious mistake was made by the refs, you had a whinge about it at the ground over a beer, and it was never brought up again like it does these days, it was left at the ground.