I wrote the article. I would NEVER tell anyone to use Oracle, as the vendor lock in and strong-arming and pricing is ridiculous. That said, I am hosting small projects on Oracle Cloud, due to the super low cost. I can just move them whenever they decide to be naughty, I am not using an oracle DB or anything proprietary, just linux VMs with my own mysql setup.

I was confused by your comment. I assume you meant to say "I would NEVER tell anyone to use Oracle DB" (as opposed to Oracle Cloud)?