I wouldn't trust my life to these videos
There are even kids displaying their GHBs ( although some deserve two thumbs up for their great work ) so take what you see FWIW. I do watch many of these , but use them collectively. I mean you take the sunm or average of what you see in 20-30 of them. Some are good , and some are not.

There is a good side to watching them. Some just list gear. Some introduce ideas. Some are really really to the point ( like survivalanlaytical ). Some take a different approach like carrying the BOB and testing himself.

So, look at 20-30 vids, and squeeze the juice out of them collectively.

BTW, I have seen a number of this guy (dsarti1)'s videos, and I see his vids from a humourous angle, not informative side. If that was your impression about his (oxygen absorbers) video, then please look at his vid "shaving a pregnant goat's backside to prepare her for birth " .. hahahaha .. You will see what I mean.