Only some and a little some at that; as I said I think the potential number of recruits to ISIS watching the video is small. This is a very different thing from being confronted with ISIS as an occupier where the immediate incentives to co-operate/support/join would be much greater and more widely responded to.
No argument with the last sentence, but I don't think anyone knows how many potential recruits there are for ISIS. Personally I think it's in the billions. There's something unusual happening in many people's minds at the moment.
For example, have you seen this: