It isn't, and it's better because of that.

All "advanced" features should be a plugin so you can pick your favorites. This way, if someone comes up with a better multi-cursor system, there's no politics involved about which multi-cursor system to come to a global consensus on. Just switch your personal config over to the new plugin and get on with your life.

No, but why would that be a concern? If you're going to use Emacs as your environment, it's best to learn how to install additional packages, as you'll get a lot more functionality that way. If you're using Sublime or VSCode, I'm sure you'll one day install plugins for it as well.