"But the soldiers had fed me and given me a seat in their Humvees, and the refugees had tolerated my presence on some of the worst days of their lives. They very rightly expected that I would tell their story." You could have explained a little about the death of newspapers and other media outlets, and how much existing footage/photography there is of conflict in Iraq (to say nothing of Afghanistan, Syria etc). They…
"death of newspapers and other media outlets" decreases supply of such images - armchair bloggers have less means, infrastructure and connections to do it.
The vast majority of this footage is admittedly uploaded in service of one agenda or another, but that's just a lateral move from the status quo ante of the 1991/2003 Iraq invasions. The critical Western press coverage of war in the Vietnam era did not seem to endure. (And that was itself a bit unusual; American press coverage of WW II and Korea was by-and-large aligned with the aims of the American government in those wars.)