Comment by dcrazy
I wasn’t able to resume watching, but if he never describes HLG I would call that a miss for his stated goal.
I don’t want to criticize too much, though. Like I said I’ve only watched 15 minutes, and IIRC this is also the guy who convinced a lot of cinematographers that digital was finally good enough.
The author has a FAQ related to the video and he expands on "Why don’t you mention HLG in the demo" in it https://www.yedlin.net/HDR_Demo_FAQ.html