I have not watched the video in question but have watched others by the same bloke and he is a Critter and I really doubt he is pushing an agenda here. I think I am going to have to watch the video.
He's definitely not a BrOSR type, he just found this rule/idea recently and thought it was cool. It would be a shame if people cast "game time = real time" as anathema simply because they didn't like some of its adherents. In particular circumstances, it can be a very good approach for minimising book keeping stress especially in a multi-group or open table, open world campaign. It has very little relevance to post Dragonlance 'AP' style play.