Should say "RG/BG sub-pixel matrix consisting of one green LED per pixel, and alternating red and blue LEDs"
If the pixels contained one red, one green, and one blue each as described, then it would be a full RGB matrix, which this device does not have. It is missing LEDs, which is the whole point of saying something.
The informative effort and proper shot alignment are appreciated. You're so close!
I think you are wrong about the update. Because when it was released in India, it officially received 4 Android os updates and 5 years of security patches.