They may well have done, but they always seem keen to claim atrocities not offer them to other people. Now I can see an argument here about somehow adding to the whole great Satan stuff, so let's all join against the US but it hasn't been their method so far.
Let's hope it is at least the start of the end but while we in the UK are selling arms to the Saudis who support IS, might be a bit difficult.
BTW if Islam is not in some sense supernatural in what way is it not just the sum actions of Muslims?