Just because it's short doesn't mean it's simple to understand. Also, the recommendations aren't about how to fix things in Django, but instead a way to prevent

Just because it's short doesn't mean it's simple to understand. Also, the recommendations aren't about how to fix things in Django, but instead a way to prevent this attack from happening. Hardly a long-term solution, especially because it basically asks you to avoid using GZIP for compression, which many people and organizations rely on in order to process timely responses.