It means that during the Vietnam war/conflict, there was global TV coverage of the atrocities of war, and it became a normal everyday experience. To see it in our homes. The same way we would see/watch/enjoy all other forms of entertainment. There was at that time even some competition among the war photographers and television news crews. To get recognition for their "artistic?" photographs and depictions of the horrors. There was photography and news coverage, that concentrated on the horrors, without attempting to send a message (just selling news like pornographic magazines, pandering to peoples desires to see more of what they had become addicted to). And there was other photography and news coverage that; had a moral message attached to it. That evoked global moral outrage leading to the many anti war demonstrations, primarily in America.
YES ONE GROUP QUESTIONED THE OTHER GROUPS WORK. Your assessment is correct.