[conistonwater]

I think there might be a substantial difference between chess and go here: if you watch, e.g., AGA's reviews of the games on their youtube channel (by Michael Redmond or Jennie Shen), they make it quite clear that in the short-time-control game AlphaGo clearly outplays the human in a global, strategic sense. In fact, Redmond says the games get quite uninteresting relatively soon after AlphaGo takes the global lead, as it just tries to "wrap up". This is not about humans making blunders, like in chess, so it's seriously different from how chess engines play.

I think the main reason analogies with chess engines don't work very well is that in chess any piece can attack/capture any other piece, leading to some very intense tactics. In go, a weak group can't really attack a strong group at all.