In Mitt's mind, he was getting a point for noticing that Santorum was angry. Backfire, bigtime. Mandate to buy insurance, and the quality of health care are damn well worth getting angry over, and Mitt basically said the issue was unimportant.
That was the dumbest thing I ever heard anyone say. He is probably praying no-one noticed, but we noticed. Not worth getting mad about? EPIC FAIL.