Professor Gélinas answered the question about not being sure of the outcome. Again, I am being possibly particularly naive here, because I'm not speaking as a lawyer, but for me, when outcomes are in doubt, one is very careful about how one embarks upon something new.
You're unsure of what the outcomes are going to be, especially when the outcomes can fundamentally change the nature of our Parliament. This is why I am suggesting that one needs to look at this process very carefully, because there is a risk in the outcomes. You don't know what the outcome is going to be; it could be positive or it could be negative. It could be, by stealth, electing a Senate eventually.
Those are things that concern me, from an ethical point of view, when you're not sure of the outcomes of your risk.