You really have taken my comment about your gravel bike riding capabilities to heart CFH haven’t you?
Oddly enough, I met up with a bunch of friends this morning for a 60 odd mile group ride. One of the guys was on a disc braked 37mm slick tyred, drop bar bike. funnily enough, neither his wider tyres nor his disc brakes opened up any new genre of riding or even the ability to ride the rough, mud strewn roads any faster than the rest of us. it simply offered him a more comfortable ride and from the momentum I still had compared to him after each corner I’m in no way envious of either his brakes or wider tyres. Being a decent well rounded adult he wasn’t in the slightest flustered by my views on such things.
Everything in Mike’s XC race vid looks completely straightforward to ride, the little rock chute in the pic certainly isn’t a highly technical feature for a half decent rider. it is indeed awesome that these XC racers aren’t getting off to walk down it though.