That video is awesome, but I have to say that BJJ is so individualized that, to me, there's no legitimate way to classify levels.
For example, I love to insist on moves. Much of my game is premised on just forcing moves, with maximized technical details. No "language," just mindless down-the-middle force. I don't like combinations. Just don't. Not my style. You know how Roger Gracie just takes mount and collar chokes you? That's the style I admire. It's not a combination, and you don't get a choice. He will take mount, then he will collar choke you. Beautiful ....