Its fake news to claim this has some legal significance. This special grand jury the dimwit was a member of has no charging power. Depending on what GA law requires, either an actual grand jury returning a true bill to indict a defendant is required, or a complaint filed by the DA is required. And either of those acts will be independent of this moron chick and other fellow grand jury members.

I'm pretty certain that "bias" is not grounds to quash an indictment. If an indictment fails to charge an actual crime, that is one basis. If the grand jury did not hear any evidence that could support the charged crime, that is another. Witnesses that were not sworn in, or witnesses who lacked capacity to testify are other grounds.

You don't even need unanimity to return a true bill. Of course, every jurisdiction has different rules, but in a 16 person grand jury, only 12 yes votes would be needed in most places to return a true bill.