I begrudgingly appreciate that even the plebbitors on LSF can recognize Jason is a total poser in almost all respects. It always bothered me how Jason achieved virality through absolute midwit bait with his i-am-so-smart credentialism (his credentials aren't even that good).
My personal cope is that all his fans are wannabe skiddies. There's actual (often cringy) infosec streamers who do like HackTheBox but they don't achieve nearly the same popularity. Pseudo-tech streamers like Jason are not in the same playing field as the genuine tech streamers. There are people on twitch coding game engines in C and they get like 40 viewers. No one wants to watch that shit. It's boring and silent because it genuinely requires intense concentration.
It took me a while to understand what it was specifically about his content that I found so irritating, especially since I was being drip fed his videos in Youtube shorts and it didn't amount to much more than just a vibe I got.
looking back on it it's pretty obvious. I don't care about gaming content, but when he talks about technical subjects, it's always like this: very confident and authoritative and at the same time very vague and superficial. What's bad about programming languages? Are human languages bad too? Is that why there are so many? Is math bad and that's why it's broken up into several different fields? Seriously what is he talking about?
I suppose he's trying to allude to the common criticism of, in particular, lower-level programming languages like C for not being intuitive enough, but he's not exploring that argument at all, he's essentially just massaging the egos of his fans by saying nobody knows anything, progress is accidental, some big bang theory type nerdisms about wizards and spells, and there you go. This clip isn't cherrypicked either, almost all his programming content is similarly vague, or, on the rare occasion that he
does go into some concept, it's on a very basic level, like explaining some technique one game or another uses to do such and such.
It's an enormous pet peeve of mine, the rise of this style of "Bill Nye for adults" content aimed at reddit-type individuals who need the smart-guy-in-the-room ego and the appearance of being all about science but without actually doing the work. Like you said, there are people out there making really fantastic tutorials on the exact things he constantly makes references to, but they only get a few dozen views because education and entertainment are two distinct things, and while they focus on education to the near total exclusion of entertainment, he's doing the complete opposite.
Here kid, have an opinion about a subject you don't understand that conveniently lets you look down on people for doing work that you're not capable of

not gonna tell you how to actually get started learning the thing you just asked about though, so don't bother.