“Kabuki Theater” usually cynically implies some political posturing. That someone is putting on a show for the audience. It doesn’t imply rehearsal.

E.g. Someone might say that politicians arguing energetically about gun violence are playing it up for their constituents and don’t actually care about the issue. It’s all a performance, neither side actually cares if anything is accomplished. It’s a show for their constituents.

I’m not sure it’s the most apt phrase for the scene but it’s been a while since I’ve seen the movie.