There's not enough info in the articles I can find over the facts of the story.
So you equate wearing weaves or not, as oppression. Nobody said you had to wear a weave.
The dress code is the dress code. They violated the dress code, then got butt hurt over the fact that they got punished for it.
In my high school, guys could not wear short but girls could. The same goes with sleeveless tops. Guys are oppressed.