Also, I don't want to speak for australians here (but I'm gonna), I think they'd probably rather be 'carried out on their shield' like the sportsmen that they are, and actually finish the game, rather than this tame ICC rule intervening. Who does it serve? When has any fielder (or batsman) been injured because they can't see the ball due to bad light? I can't recall it ever happening, in any form of the game, no matter how bad the light.
I understand the logic. It's just sad that this is the result.