Now strictly speaking the people who voted with low weight didn't do anything wrong. It is a valid choice to make. And now that they won't receive a future payout with this strategy the problem is fixed. They can adjust their strategies so that they vote the minimum required amount and that's fine.
And about the note you spoke of: This wasn't a bug or an exceptionality. People could choose the voting percentage as they like from the beginning. This was how the system worked until now. And now it has changed and hopefully for the better.