Great summary - not too comfortable with the term cryptoeconomics as well! I've just finished the book recently, and like your conclusion, I've found they're converging with the ideas put forth by Daniel Kahneman's Thinking, Fast and Slow. Just pretty much different framing. If markets are largely anchored then they're ultimately unpredictable and not necessarily resultant from this thing called "wisdom of the crowd", and functions best with decentralisation / antifragility.
SP for me is very skin in the game, and it's quickly becoming soul in the game lol.
As for scaling consensus and discussion, Tauchain seems to be addressing this the best, out of anything else I've seen. Waiting for its alpha release :)
RE: Concerning power asymmetries and governance structures