Yes, but it is very important testimony, imo.
First, it shows the jury just how delusional Casey was with all of her intricate lies. This web of deceit goes far beyond JB's opening explanation, of a troubled girl learning to hide the truth. This is pathological cruelty.
Also, it helps explain why George did not immediately call 911 when he picked up the car. Cindy had been in communication with Casey every single day. So he did not think she was dead, and it probably never occurred to him that she would actually kill Caylee. imoo