In Florida, service dogs in training, while they are not service dogs, have the exact same access rights as fully trained service dogs. As long as they are being trained to do a task to assist disabled persons, doesn't matter what the task is, if they wear costumes or vests or what size they are, they're allowed. Don't know if Florida has some sort of rule or law as to whether a person can have multiple dogs they are training in the same place at one time. I would bet it does not. I sort of wonder what she is training these dogs to do. Emotional support dogs, which support a person's mental health by their mere presence, aren't the same as service dogs.
From the article, she claims she is being "harassed" and that Disney security guards told her to take the dogs out of Disney Springs, when she refused, they asked her to leave.
If they're really service dogs they can't ask her to leave (they can ask her to remove the dogs if they are not behaving) and they can't ask for certification (not sure if they can for dogs in training). Multiple dogs is interesting but I don't know if there's any law that clarifies the ADA on one person who claims they have multiple service dogs or dogs in training.
It's also not clear who was "grabbing her dogs and yelling curse words."
I understand this woman is something of a fixture at WDW, always with multiple costumed poodles, so it is possible they have seen enough of her and her dogs to believe she is not actually training service dogs.