I'm reminded of "Die Hard", when the coke-sniffing co-worker goes to Hans Gruber and thinks he can negotiate with terrorists. He gets McClane on the phone, tries to say "John, they're going to kill me, give them their detonators". McClane tells him to shut up, that he doesn't know what he's gotten himself into. Gruber shoots the guy dead.
These people may well have thought "if we get let ourselves get grabbed we can use this to draw attention to the evils of the Americans". The jihadis, by contrast, think "fresh meat", more western people to rape, torture, and butcher.
Or, on the other hand, they could just be morons who blundered into this.
What POs me is that our military will have to look for them and take risks on their behalf anyway.