Well, there is reference and reference...
I dont know much about armor. I'm not in the army, and I never saw a kevlar vest in the shops around my house.
I would never reference a video game as a trusthworthy source of information. Or maybe to joke.
Just that you told me about the SAPI plates like if it was something I knew nothing about. But in fact I saw this "concept" in a video game. And I did some research (basic) on the internet.
And some video game are designed as simulations. You should be more tolerant on this topic. You could be surprised.