I don't think you can throw out compromised counties and count other counties. It seems like it is all or nothing.
I disagree. If all parties are following the law, all ballots must be considered to be legitimate. If one of the parties violates the agreed upon rules, any POTENTIALLY affected ballots must be considered ILLEGITIMATE.
If there is a way to de-legitimize some of the ballots in a county then do that. If there is no way to segregate a portion of the ballots in a county then they must all be considered illegitimate.
Going forward this will put the onus on the people in a county to ensure that their election officials follow the rules.