Is Sherry a Cheat Code?

Duncan: "I feel like Sherry is somewhat of a cheat code. I mean, that's just like an orbital strike" He says Smug was going to play her no matter what because he didn't care whether she was up next week or not. The rules say you can't play the same person even if they're playing each other again. Duncan calls his nuke in the third round 'absolutely outstanding work'