It's the best possible outcome. 11 saw no reason for her to keep breathing so couldn't have believed a word she said. One made it through voire dire when she shouldn't have and was vulnerable to believing DV when there wasn't any. Maybe she was the juror who wanted off and was refused, maybe she wasn't. It doesn't matter.
Perryville with the DP turns out to be, after a few months there, no different than Perryville with LWOP. The DP wasn't going to mean isolation enough to make any long term difference in how she exists for the rest of her life (may it be a very short one). This way she's cut off in ways that do matter to her, and the Alexanders are as free of her as they ever are going to be.