I really haven't seen much evidence that media professionals expressing shock at, for example, Brexit and Trump's election are engaged in some strong form of deception. There's a reasonable set of critiques about media incentives and behavior here, but I think this is a case where cynicism of this kind can obscure observable reality: The majority of people really didn't expect these outcomes.

As much as I would normally support this kind of cynicism, in the particular case of Trump's election, the media were as genuinely shocked as everyone else. Opponents and supporters, informed and not.

Almost nobody thought that was seriously going to happen. To claim otherwise is edgy revisionism.

Can't comment on the others, as I was not following closely enough beforehand to get any reading on the public zeitgiest.