Ironically, by selling out so quickly they are really damaging the quality of the results they will get. The overwhelming majority of those kits just got sold to a bunch of coffee nerds with notifications set for his channel and not the broad consumer base they say they want to reach.
I'm extremely anti-gatekeeping any hobby, and I've never gotten any bad vibes off him. He nearly always addresses the fact that many of the minutae that he focuses on are for the extreme nerds with extra money/time to spare. He even regularly talks about how many of the ideal processes he talks about, he doesn't do because it's a PITA.
He's very slow to recommend expensive/time consuming products, and he's quick to offer more reasonable alternatives.
That said, he's a coffee nerd with money to spare, so he definitely gets excited and involved with things that are a bit beyond your average bear.
I've never seen anything from Hoffmann that suggests that he's a gatekeeper. He's extremely revered in the world of coffee (some attribute the advent of third wave coffee in UK to him), but the guy seems sincere and genuinely excited about coffee. I'm a student and don't have too much money to spare, but I've gotten great recommendations from him many times. I'm really confused what video of him gave you that idea.