Wait a minute, did somebody get so pissed at flatpak that they bought a domain name just to specifically host that single blog post?
Depends on hosting company. I've "bought" domains for free many times, without hosting, just to run joke sites for few months.
Sounds fast to me if you know how. Just write the article (markdown + pandoc is fast) and...
With Zeit you can just type `now` and `now alias (url) mydomain.xyz` - and the website is up and running at your domain for $domain_price + 0.10USD/GB.
With DigitalOcean/Vultr/Some VPS Provider + Ansible you can do something similar.
I am among the laziest people I know and even I'm raising an eyebrow at this statement.