The article doesn't make it clear, but it appears that prisoners other than Illegal Alien detainees will still be controlled by dogs. Sweet, criminal foreigners will get better treatment than not yet convicted US citizens.
You are correct. At the risk of getting scorched, I will admit to having spent some time as a 'resident' in the PCJ. The dogs will still be used around/on US citizens. Though I found the dogs to be very intimidating and at times scary, they were a very effective tool. There should be no special treatment for criminal aliens. Jail is SUPPOSED to be unpleasant...I certainly won't be going back!