Really interesting video. Not being a pilot myself, I can only conclude that this is not part of the PPL training. Watching the video, I have to question how effective it really is (certainly, it would probably work better at night) - I mean, I suppose in NORDO conditions, it's better than nothing, but not exactly a resounding replacement. Good work, btw (I love in cockpit videos, expecially GA).
It depends on your instructor if you get exposed to light guns. I didn't when did my VFR training 8 years ago.
Gotta love flying as it took me 925 hours for my first exposure to light guns! Glad I did this as it does give me much better insight on what to expect should I really go NORDO.
I will say it was a "hard worked" one hour flight time, but very, very fulfilling when all was said and done as I do love learning!