One of the DualShock 4’s features is a light bar in front that blinks several colors, and will be used to indicate statuses, interact with games, etc. Many fans have been clamoring for the option to turn the light off. Here’s what Sony’s President of Worldwide Studios Shuhey Yoshida had to say about it.
— Shuhei Yoshida (@yosp) January 14, 2014
It does make one wonder if this is due to technical limitations.