Don’t think of Mint as an “easy distro”, but rather as a distro that tries to stay the hell out of your way as much as possible to get things done. Any OS - Linux, Windows, Mac, BSD, or Unix is merely the means to the end goal of the user and not the reason itself. I don’t want an interesting or complex distro. I want a distro that helps me to do a task.
You want something interesting? Give LFS, (Linux from Scratch), a try. That’s an advanced distro that you can make as interesting as you desire.