Cloudflare’s mission is to help build a better Internet.

No, because if they were to do that, Cloudflare's stock would go to zero.

I could explain how to solve all the Internet's problems, but none of those are technical problems; all of them are fundamentally political in nature, like most world "problems". People aren't poor, because that's a problem. People are poor, because it makes other people rich. You can't be rich without other people being poor.

This article is just 100% scare tactics. https://blog.cloudflare.com/technical-breakdown-http2-rapid-reset-ddos-attack/ would have been more interesting to link to, but ultimately all of these are just symptoms of technologically unsophisticated humanity. The Internet and almost all its software connected to it were developed by a bunch of idiots (people that thought it was a good idea to use a system designed for trusted actors to connect to your literal mortal enemies).

https://cloud.google.com/blog/products/identity-security/how-it-works-the-novel-http2-rapid-reset-ddos-attack has less details, but is more to the point. It's just a protocol level design failure, just like the Internet itself has such a design failure.

I don't get what people find interesting about such "security issues", because all of it can be avoided (and also without involving parties like Cloudflare or Google). Yes, I understand that when your business halts due to such an issue it's a bit annoying, but perhaps you should have considered that before adopting a wrong architecture.