I have seen school admins. lie to cover up their abuse of students plenty of times. They should have interviewed Hispanic students to see if the school was lying. You know they were lying because “no one got into trouble”...if white kids told Hispanic children to leave the Nation, they would have been punished. That proves their lie.
In this case, I believe the administration - maybe we just saw a unicorn in the wild, but this time? Yeah, they aren't making this up.
So why did no one get punished? Probably to keep from adding to the drama and wildness that was already present.