...which doesn't even try to get a p2p connection. Instead you always get the thing you didn't want. If you're okay with that you could've just ignored how Tailscale connected those devices, that's kind of the point. You've also in the process converted your entire security model to Cloudflare's idea of "Zero Trust" which involves 100% trusting Cloudflare.
The rest of the blog post is fine, but the motivation is honestly baffling.