This would be a stronger point if the most popular provider of the service you would have to rely on wasn't a non-profit who provides their services for free and makes tools that are extremely easy to use and understand. It's a pretty fantastic outcome given the need for encryption in modern times.

Let's also not forget that having a HTTP website relies on other services that are maintained by others as well; this isn't going from "full independence" to dependence, it's going from N dependencies to N+1.