But it's true? It's still true today. The only worrying part of the story is that google also makes browser and OS, which doesn't apply to Cloudflare.
The above comparison to App Store is even weirder / more ridiculous. App devs publish on App Store because App Store is pre-installed on every iPhone already, so it maximizes the number of users they can reach. Websites use Cloudflare to protect themselves, at the cost of reducing the number of users they can reach. The two situations are so different that "false equivalence" is an understatement.