He speaks out and condones it, but never mentions that they are, in their heads anyway, Muslims.
Most of the time he dodges talking about how the terror groups are Islam affiliates though and won't acknowledge it. Perhaps if he did, or at least acknowledge that they think they are and label themselves as such, it would go a long way.
It would be like saying the Westboro Bapist Church is a group of bigoted old people and confused young men, and ignoring their religious affiliation (which doesn't happen).