But O'Connor has now said he was confident the government could work with Fonterra to get the change across the line.
"It's a very clear result and I'm pleased for Fonterra. It was really important that they get a clear mandate for change and there's an indication that the farmers are behind the board.
"There's been a shift in focus for both the board and management over the last couple of years. This is an endorsement of the direction of travel."
But there were still some issues that needed to be discussed, he said.
"There were concerns around the possible consolidation of votes or the influence in the hands of some. It's important [that] it's easier for new farmers to get involved and this does that to some extent but we have to ensure that the companies working in their long term interests and future generations as well.
"Making sure the milk price settings are right to ensure there's no gaming - that's been one of the criticisms made by independent companies."
There were always issues around competition policy and law in New Zealand, making sure that a dominant player in any industry was not able to utilise excessive market power and those things needed to be worked through, O'Connor said.
"In my perspective, I need to know that the people who are minority shareholders, they may only own a third of the shares that they're entitled to are being looked after and that those who own four times the shares that they might be entitled to that they aren't dominating the proceedings at the board table."
He said there would not be drastic changes but it was important that if legislation were to be passed, it was done right.
"We've committed to work with the board, this is our biggest and best company. We've got to make sure that it's in the best position to capitalise on the opportunities into the future."
- RNZ
