Wow. Defining genres is not an easy thing to do, and I was expecting this wheel to be a huge failure by the time it hit the RPG point of the wheel. But this is actually a pretty good way of going about it.
Do you explore, is there conflict, is there strategy, and is there action? Though there isn't a section for all four to be together yet, it's pretty obvious that would be called ECSA. And the titles match the game play and not the gaming history.
It closely fits most attempts I have seen to define games. I have my five A's of gaming genres: Action, Annihilation, Arcade, Adventure, and Armada. On the 5 goals a game can have: move to a goal, annihilate things, get a high score, quest exploration, and winning a battle you're overseeing. But I can pretty much put these groups around the circle without any trouble.
Action=Exploration/Action.
Annihilation=Action.
Arcade=Conflict.
Armada=Strategy.
Adventure=Exploration/Strategy.
There's a few sub-genre's people might still argue over. Driving and Puzzle games tend to have Zero exploration, and should be way over on the conflict section along with Sport and Fighting games. Still, I think if players start defining games by the amount of exploration to the game, they would find a place on the wheel. And isn't that better than naming a game on whether it has Driving or a Puzzle in it?