Yep, and Apple changed that after some schools were spying on their students through software that could enable cameras on MacBooks without the light: https://en.wikipedia.org/wiki/Robbins_v._Lower_Merion_School...

I've also read of exploits which found ways to burn out the Macbook LED light by somehow messing with the power being supplied to the webcam without damaging the camera. Thus afterward, the LED light no longer powers on when in use but the camera still works.

Your Wikipedia article disagrees with the claim that it could disable the light.