Even the girls father admits she was wrong saying she was "sick" and that's why she didn't stand. Get over it, she was WRONG. She should have stood. If she was so sick she couldn't stand for the pledge she shouldn't have been in school in the first place.
You're grasping at straws.
Maybe she had a menstrual cramp? Maybe she ate something bad for breakfast and it just then hit her? Plenty of kids go to school sick without they or their parents being aware that they are getting sick.
The only thing this girl did wrong, IMO, was to give her reasons for not standing. It's no one's business why she did what she did. No one is under any obligation to give any reason for choosing not to stand and say the Pledge. It is every citizen's right to choose not to, regardless of the reason.
Too bad some people in this country have no respect for civil rights.