I am not going to attack anyone specifically because they have missed something in this article (which is exactly what was intended by the way it was written, imho).
Instead, consider this, from the article:
that particular bus route serves one of three language academies. The one at Phalen Lake is for Hmong students learning English.
Now consider this:
The bus serves kids who are trying to LEARN English. Since these kids already knew English, they were on the wrong bus!
The driver handled it badly, the school district screwed up, yes. But, they were trying to get the non English speaking kids to a school where they could learn English.