How is allowing the people the opportunity to settle the issue decisively as to who they want for their Governor disenfranchising them? If anything, I would imagine if the Democrats were confident Grigoire could win with an undisputed mandate, it would be in the interest to hold a fair vote. It isn't a do-over since NO ONE knows who actually won. There are two legitimate claimants to the office. If the Ukraine can hold a clean and fair election, so can WA State.
As of right now the Republican secretary of state has certified the Dem the winner so apparently the officials of the state know who won.
The Ukraine first got their top court to declare the prior election void because of fraud. That hasnt happened in WA and until it does there is no rationale in law for revote.