Chatty, its always been NSW control the waters, Vic only the bank on its side. I think you have it backwards.
Id much prefer the stink than give up on attempts to control carp. Its not that we can beat carp now, but we can try in any little way, to assist the indigenous critters to survive until a means to eradicate or severely control them is found. Eggs, and more over, people will just toss them back live, and argue they didnt realise it was still alive. People try hard to talk their way out of tickets, so the law tends to remove the escape. That is, no release, dead or alive. If NSW are allowing it, that ought to be changed. Dont want to kill a fish, dont go fishing.
Its not ideal, but I think its misguided to start undermining what little control measures we have.