I think you can make a case for either way of doing things and there's certainly no lack of respect for the Oz way. It's just that I think the other way is more cast iron because I know the restriction is cancelled and will either not be adhered to, as expected, or alternatively the pilot might adhere to the restriction anyway which will be no big deal. The other benefit is there are more airspace users throughout the world used to doing it this way. The problem with assuming that the restriction will still be adhered to with the other method is that some pilots won't, because they have not been trained to do so. This might end up with you getting egg on your face.
The bottom line is that we should standardise things so that pilots know what to do, wherever they are from. If the standard is 180 degrees out from what I personally would like then I either live with it, or live with it in the meantime and try to get it changed through the appropriate channels. But any change is going to take a long time and a lot of debate and lobbying if you want to change the world who might all prefer the current way of doing things anyway.