Petitfromage - if you are getting reflective glare like that in the video, you have not got a compatible lighting system. That glare looks like white light from unfiltered instruments and even filtered instruments should have dimmers fitted to reduce the light levels.
The backlight of a normal cellphone can be seen on goggles from miles away so a proper white light torch looks like a laser light show. A lot of casualties/lost walkers etc have been located on the hillside as they use their mobile phones to call for help.
As Nick says, NVG flying does not require the normal night adaptation required for 'mortal' night flight; we regularly go from NVG on approach to white light for winching and back to NVG for departure with no degradation of acuity save for 'brown eye' when reverting to white light after using goggles for a while.