Nah. It can ohko him sure but as soon as Ogerpon takes 1 prize Charizard just ohkos no sweat for the rest of the game. It's also harder to consistently power Ogerpon up and its attack cost means it doesn't even play nicely with the other Ogerpon. Radiant Charizard can also swing the matchup in...
It's good, but it's not infallible. As soon as they can force it out of the Active Spot - via Prime Catcher, Boss's Orders, Iron Bundle, whatever - they'll get their Abilities back. Still, the lock is good enough that it'll definitely see play.