John2010: As I understand it -
The second question (Part B) asks "If New Zealand were to change to another voting system, which voting system would you choose?" - so ones response to that is not related at all to how one answers Part A the intent of which is whether one wants to keep MMP or not.
So one gets the opportunity to vote as to whether one wants to keep MMP or not and then to vote for the separate matter of which would you choose (if any, because you don't have to answer both Parts if one doesn't want to) should it be that the result of the referendum is that the majority don't want MMP.
I think you are bang on the money there.
But, wouldn't the proper way to have done this to be to include MMP in the options for Part B? They way it has been done is to exclude it entirely from Part B, where they're asking people to choose something other than MMP. Being that FPP is, IMO, the only other option that many/most people truly understand, I wonder where most people will vote then? There should also be a question to gauge peoples understanding of the options so as to know if they've cast an informed vote, or blindly chosen an option because they know about that option and not the others!
Edited to add: I guess at least with the current voting paper I can vote to keep MMP, AND vote for STV in case there is an overwhelming vote for change...
My personal opinion is that if there is an overwhelming vote to change systems then we'll likely end up with FPP, and that would (IMO) just be a big mistake as it allows politicians to completely manipulate the votes through carefully considered electoral boundary changes. And at least under all the other systems you shouldn't end up with someone running the country who actually received less votes than other parties did. (What election was that again?)