If someone was driving a unmarked "technical" with a VERY realistic looking belt-fed in the bed, with someone on the trigger, apparently cranking off bursts at targets of opportunity in your neighborhood, what would/should be your response? It MIGHT occur to a reasonable person to attempt to engage from cover.
It would seem that a person in the back of a slow-moving Hilux is very vulnerable. As is the driver, and
other fiddly bits of the truck. If I had nerves of steel, and not scared poopless, it might occur to try to disable the truck and see what the reaction of the mounted force is. OTOH, the proper reaction might be different in the the tony suburbs of, oh, Mogadishu than Detroit.
Note: I didn't read the article, so I'm not commenting on that. I just didn't want to start a new thread that might well be closely related to this one.