Nintendo's investors are taking the long view. There's nothing a new president could do right now to change Nintendo's outlook. Their long term plan isn't awful anyways.
Yes, in general Iwata has promised significant change and has made a few moves in that direction.
This vote would seem to signify that the current investor pool is willing to give them another chance (presumably culminating in the launch of their next hardware), but the ratings are low enough that they're signaling their patience is not infinite, since generally these meetings are a nigh-complete rubber stamp when investors are happy.