You can't connect to your email or hosting if your DNS with Cloudflare is down.
Plus, Dynadot uses Cloudflare for their site, so you couldn't even change your nameservers if CF is down.
A random scatter won't protect you from a service like CF / AWS / GCP being down, and most users won't benefit from protecting from that sort of unlikely and major scenario anyway...
That's a good catch about Dynadot using Cloudflare.
Ideally there would be a setup to avoid having the domain name registrar use a different DNS than me.
I'm more concerned if an over-zealous algorithm or employee shutting down an account and being able to just switch that one service to another company rather than losing everything.
Plus, Dynadot uses Cloudflare for their site, so you couldn't even change your nameservers if CF is down.
A random scatter won't protect you from a service like CF / AWS / GCP being down, and most users won't benefit from protecting from that sort of unlikely and major scenario anyway...