As I posted already, from the first half of 2008 it was obvious what the basic framework and principles of 4e D&D would be. WotC didn't conceal this.I don't know if that comparison holds. We're talking about versions of D&D here, in theory they're being designed and marketed to the same audience. This is ordering fries and receiving a bagel, not going to the wrong restaurant. 4e was specifically positioned as a replacement for an existing thing. We're not comparing D&D to a non-D&D game.
And then the books also made it clear - everyone, for instance, has read the advice to the GM to apply pressure and establish stakes and cut to the action ("say yes to player ideas" (DMG p 28), "move on from the two gate guards" (DMG p 105).
I mean, if someone bought the books and felt ripped off, that's one thing. But after 15 years of opportunity to come to grips with what the game is and how it's meant to work, critiquing its play by way of hypothetical examples that assume the application of principles and methods the game eschews just seems pointless, and silly.