If a majority of voters vote No to AV on May 5th, it will probably be mainly because they were persuaded that AV was just too complicated to understand. This will be a disaster. This will be a failing of the YES campaign to explain just how simple AV really is.
Do people really think choosing how many candidates to rank and then ranking them in order is too difficult a task?
Is it really too difficult to understand a counting process where 'you keep eliminating the bottom candidate and redistribute their voter's next preferences amongst those left, until someone gets a majority'.
Honestly, the YES campaign would have done better putting out one of these two excellent videos instead of their frankly weird election broadcast.