I don’t know... I got out 3 months before the towers came down in NY. Some of my friends that were still in, and Were deployed, had family members sending them civilian body armor since we were still wearing flak jackets (designed to stop shrapnel from a detonation at least 30’ away... not a bullet).The public gets technology ruffly 20 years after the military. Period.
Granted, to your point, there is a world of difference between having the technology, and getting the money from congress to field it widespread. I guess the money goes to aircraft, and some trickles down to special ops, but the average grunt is 20 years behind. At least it sure felt that way?.