I get where you're going with this, but I'm not following along.
Pointing out that there were protesters and explaining what they were doing there/why they were there is one thing. And that's important news. But this article went way way beyond that. They interviewed the protestors, put their names in the paper, and published their bigoted message along with it. They gave them fame and a platform, and helped them spout their hatred.
When there's a terrorist attack, responsible news agencies are careful to avoid giving unnecessary publicity to the terrorists, such as publishing their name and manifesto, and instead they focus on the victims. That's the attitude that should have been taken here. Mention the protestors, but don't platform them. Focus on the kids who are being harassed by these bigots, and show them in the positive light they deserve.