Cold Harbor what next...

If Cold Harbor was just testing to see if severence barriers held, it seemed to succeed right? First she had no response to the crib. They then had an even better surprise test by bringing Mark in and she still didn't recognize him.

They were going to kill her after anyways so seems like they should have gotten what they wanted out of it. So, was it not a success? Now they know they can do this process again and eventually scale it.