Same here. The only thing Kim learned from her conversation with Chuck and Howard was that Jimmy didn't destroy the only copy. In threatening to move to suppress entering the tape into evidence, Kim was trying to make Chuck think that she didn't wanted it played. In fact, Jimmy and Kim wanted that to support the contention that Chuck was trying to entrap his brother, culminating in his rant where he admitted that he hated Jimmy.
Of the many things I liked about Breaking Bad, one was the clever use of camera angles, a practice that continues in Better Call Saul. The closing shot in the last episode was a case in point. It framed Chuck on the witness stand, diminished in stature, and the red exit sign in the foreground, to emphasize that the effect of electricity wasn't real and symbolize Jimmy's exit strategy.