Or they don't attack Israel because it's a hardened target. I can't imagine it's easy to find an Israeli Muslim willing to commit a lone wolf attack for ISIS who hasn't already done so for Hamas. Not being able to come within ten miles of the Israeli-Syrian border without getting hit by tanks and airstrikes doesn't contradict that.
Or they don't attack Israel because it's a hardened target. I can't imagine it's easy to find an Israeli Muslim willing to commit a lone wolf attack for ISIS who hasn't already done so for Hamas. Not being able to come within ten miles of the Israeli-Syrian border without getting hit by tanks and airstrikes doesn't contradict that.
Unless you have an ultralight, apparently...