Kerry refers to them as Daesh quite a few times. You have to step back and consider the big picture of what you are hearing. The Syrian Rebels were expecting the US to take out Assad three years prior. That was all they wanted. Kerry is basically admitting the US failed and now perhaps the rebels should demand elections. Kerry also admits the US is pouring an extraordinary amount of weapons into the conflict. As is Turkey, Saudi Arabia and Qatar. Kerry also admits that Russia came in cause it looked as if Daesh was going to take over Damascus.
He says ISIL not ISIS.