It seems like a "fail safe" to me. The current design is a bit closer to a "fail deadly" in that it creates a mode that's the worst-case from the user's perspective: the camera works but the indicator doesn't.
It is probably worse to have an unreliable indicator light than it is to not have any indicator light at all.
Re:FBI director: Cover up your webcam
by Artemis2 on Thursday September 15, 2016 @09:44AM
(#12506032)
Reminds me of this: https://9to5mac.com/2016/02/05/error-53-iphone-6
Many would argue that this is the more flawed design.