Coming from the hardcore developer side I saw myself in some of those, especially in

  They do mental incest by bouncing ideas off the same people every time.
  They have no clue about their market.
  They confuse certain customer assumptions with facts.

I'd like to add one that hit me especially hard

  They turn their sleep cycle into crap due to poor planning and for arbitrary deadlines

It's actually strange that it took Eric Ries' to get verification/falsification into the wider Startup echo chamber. Engineers should know better :)