Well one thing that they got wrong was how easy AI alignment ended up being in the end. I can fully understand have a basic view of alignment even 10 years ago, about how its difficult to explain human values to a computer.
But, looking around at whats out there today, it seems that computers are able to do a pretty good job of understanding human values without accidently believing its a good idea to turn the world into paperclips/computronium because you told it to make your computer run faster.