Noteworthy to me, although I did not commit the details to solid memory, was that the ideology says they will be all but completely annihilated and that the current caliph would only count as 8 or something in a progression towards 11 or something.
I entirely missed Dabiq being rejected, my take was the opposite, but I read it quickly.
For these reason I thought containment and collapse internal failure as opposed to open battle, which I read as acceptable to lose as long as one rationalizes a splinter of survival.