I was thinking the same thing when he was questioning the teenage suicide bomber, and the kid finally just says "what can I say?". I'm thinking, hey man, drop the question already! Yeah, brave reporter and very lucky to walk out of there alive.
Here's an in depth look that interprets ISIS as a Medieval version of Islam. This article claims it's wrong not to understand that this is indeed Islam. That it's wrong to say "this isn't really Islam".
This view says it most certainly is, and the whole aim is to precipitate the apocalypse.....
https://www.theatlantic.com/magazine/archive/2015/03/what-isis-really-wants/384980/
...."The reality is that the Islamic State is Islamic. Very Islamic. Yes, it has attracted psychopaths and adventure seekers, drawn largely from the disaffected populations of the Middle East and Europe. But the religion preached by its most ardent followers derives from coherent and even learned interpretations of Islam.
Virtually every major decision and law promulgated by the Islamic State adheres to what it calls, in its press and pronouncements, and on its billboards, license plates, stationery, and coins, “the Prophetic methodology,” which means following the prophecy and example of Muhammad, in punctilious detail. Muslims can reject the Islamic State; nearly all do. But pretending that it isn’t actually a religious, millenarian group, with theology that must be understood to be combatted, has already led the United States to underestimate it and back foolish schemes to counter it. We’ll need to get acquainted with the Islamic State’s intellectual genealogy if we are to react in a way that will not strengthen it, but instead help it self-immolate in its own excessive zeal."
Now that it has taken Dabiq, the Islamic State awaits the arrival of an enemy army there, whose defeat will initiate the countdown to the apocalypse. Western media frequently miss references to Dabiq in the Islamic State’s videos, and focus instead on lurid scenes of beheading. “Here we are, burying the first American crusader in Dabiq, eagerly waiting for the remainder of your armies to arrive,” said a masked executioner in a November video, showing the severed head of Peter (Abdul Rahman) Kassig, the aid worker who’d been held captive for more than a year. During fighting in Iraq in December, after mujahideen (perhaps inaccurately) reported having seen American soldiers in battle, Islamic State Twitter accounts erupted in spasms of pleasure, like overenthusiastic hosts or hostesses upon the arrival of the first guests at a party.
"The Prophetic narration that foretells the Dabiq battle refers to the enemy as Rome. Who “Rome” is, now that the pope has no army, remains a matter of debate. But Cerantonio makes a case that Rome meant the Eastern Roman empire, which had its capital in what is now Istanbul. We should think of Rome as the Republic of Turkey—the same republic that ended the last self-identified caliphate, 90 years ago. Other Islamic State sources suggest that Rome might mean any infidel army, and the Americans will do nicely."
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And here is a key element in their prophesy:
"After its battle in Dabiq, Cerantonio said, the caliphate will expand and sack Istanbul. Some believe it will then cover the entire Earth, but Cerantonio suggested its tide may never reach beyond the Bosporus. An anti-Messiah, known in Muslim apocalyptic literature as Dajjal, will come from the Khorasan region of eastern Iran and kill a vast number of the caliphate’s fighters, until just 5,000 remain, cornered in Jerusalem. Just as Dajjal prepares to finish them off, Jesus—the second-most-revered prophet in Islam—will return to Earth, spear Dajjal, and lead the Muslims to victory."
So, believe it or not, in their belief, Jesus Christ will return to lead the Muslim armies to victory. So, it's the end times for them as it is for some Christian groups.