Almost everyone in the OU viability ranking believe its actually a A+ not S, you don't ban A+ pokes.
Just to further prove my point
Latiad and Latios walls this thing to hell.
Dragonite says hi.
Oh, Earthquake on YardY? Hello Air Balloon Heatran. Earthquake also severly limits Charizard Y even more.
Base 100 Speed? Revenged by Garchomp, Pinsir, Terakion, Keldeo.
10+ checks and a 4x weakness to rocks does NOT warrant a ban