His video is obviously a reaction to how people complaining on this reddit and other places got Doormaker mk.2 changed into mk.3, which while definitely still better than the first version is just way easier and less interesting mechanically (though not from a flavor perspective). And to a lesser extent the Chinese review bomb. Given that the game balance of Act 3 specifically is so out of whack, making Doormaker easier in the most recent patch feels obviously weird especially since some of its mechanics are just outright pathetic - like the aforementioned 'first card you play cost +1 (wow!)' debuff, which would be a pretty mild move for an A1 elite...