As most know, there are three "crawl-under" areas where one has to shed their packs (maybe some could make these with pack-on), but all three also have a nice climb-over route which I used instead. My wife and I climb and canyoneer (very similar moves as the notch) extensively, so I found the notch an absolute blast and took right at 50 leisurely-pace minutes.
One "hazard" of the notch is dropping something down into one of the bottomless cracks! A guy I met right after the notch had dropped a trekking pole down into a crack and couldn't retrieve it. I see in the video the OP pitch his pole forward a couple times! Risky. Two minutes into the notch I stashed my poles in my pack.
The notch was my second favorite mile on the entire AT; the first being the final mile up Katahdin.