You're right! It's just for the duration of the voting period (two weeks) of the proposal that you voted on, to avoid people being able to vote for a proposal

You're right! It's just for the duration of the voting period (two weeks) of the proposal that you voted on, to avoid people being able to vote for a proposal without the outcome having any potential to affect them (because they split away). This massively undermines the OP's article criticism.