The added value of this book is that it shows all facets of the crypto world. Don't expect a deep dive, but a broad overview with more content than the average newssite does add value. Also by discussing many different DeFi topics, it clearly shows that Bitcoin is probably the least interesting part of this new world.
However, the book has one fatal flaw, it is clearly biased pro crypto. I admit, I am a skeptic, but one of the reasons for me to read this book was to find arguments that would help me see the potential of crypto. I tried, but I could not find these arguments. They probably are there for the crypto optimists, but for the neutral observer the central question remains 'what are the real problems that crypto can solve'? And honestly, the main answer seems to be 'cutting cost by regulatory arbitrage'.
What really amazes me is that in this book return on crypto is seen as something natural. The authors don't even try to find an economic argument for this return, which to me must be pure speculation.
Finally, the title is hyperbolic, but that's just my prediction.