I think if you check you will find that this is an old Obama trick. It’s how he got elected.
By challenging his opponents legality.
If you read more about this situation, you will find that if that's all it was, there would be no problem. She could have just started over with the petitions. They 'delayed' ruling on it until it was too late. They changed it from 90 days to 75, to favor the Democrats. (Because it doesn't take but very long to forge a bunch of names on a petition).
I think had she gotten a new petition going, they would have told her it was 'too late' to submit.
Was it not a 'race' issue?
The only thing DEMOCRATS perceive as WORSE than a BLACK REPUBLICAN is a FEMALE BLACK REPUBLICAN.
Especially if she is attractive, and smart, and qualified.
If you listen to the interview, she explains there are two conflicting rules, and they pick and choose which one to enforce depending on who they want to keep off the ballot.
The podcast is available here, it's a GREAT interview:
Why are State Democrats Keeping Cedra Crenshaw from Running for Office?