Well, this case just follows well established US legal precedent.
Cases like these are never lost (or are settled in the plaintiff's favor) as long as the photographer/videographer was not interfering with a law enforcement investigation.
For instance crossing into an area marked by crime scene tape is interference. Doing what Ms. Medina did is not. If a law enforcement officer instructed me to move further away from an incident, I would obey. This is different from what Ms. Medina was ordered to do.
In fact, Ms. Medina told the officer she would comply when presented with a subpoena. Legally, this is not obstruction. After her legal expenses are paid, she is donating the remainder of the award to ACLU. So she can't be dismissed as a greedy, law-suit prone individual.
The only way to have an impact "all over the USA" is for more people to do exactly what Ms Medina did.