But whatever we may think about the content of her speech is kind of irrelevant. It's not really what she said that's important - it was the act of saying it.
On the surface it might not look very impressive. Making a speech against teachers doesn't look quite so ballsy when you've left school and met some of the mad, bad and weird people in the world. But when you're a teenager school is a consuming, dominating place. School controls what you wear, when you eat, where you go, what you study, what you do on weekends ... it's immersive. It's your first real encounter with authority outside the family.
So when you're 15, standing up to school is standing up to the biggest power you know. In terms of pure rebellious fire, you've got to hand it to the girl. Being rebellious, and I mean properly rebellious, is hard.
I'm not talking about being edgy. Edgy is doing something a bit controversial but something you know people will probably still think is cool. Like going out partying or smoking or sleeping around. Being rebellious is when you do something controversial and you know people won't think it's cool, or acceptable or wise. When you're rebellious you're risking something, when you're edgy you're not, and so rebelliousness is much harder. It's also really important for the future.
On Wednesday, the Australian Government passed legislation that can be used to imprison professionals working in asylum seeker centres if they talk about the conditions. It has been met with incredible resistance, the Australian Medical Association denouncing it for "fuelling concerns about a lack of scrutiny and accountability in the operation of immigration detention centres".
The people, like the AMA, who rebel on these big issues have to be tough. They have to be fearless, committed individuals who believe so strongly in a cause that they'll risk jail for what they believe is right. And to be that tough takes practice and that means you have to start as early as possible.
So we should be supporting intelligent, intellectual rebels like Anela. We need people to stand up to authority as much as possible because they need the practice at it. That way, when the Government or a multinational want to force through something controversial, we have people who are prepared to challenge them.
People like her go on to take on the big bosses. It's a tough, lonely and absolutely essential job if you want to preserve the voice of democracy.