It's a decent book, and a decent movie (kudos for one particular scene where I recognized data from the actual LoanPerformance database) I actually prefer the movie Margin Call for more accurately capturing the feel of the crisis from inside a bank.
Another compounding factor is people often assume the message is "banks bad" but it's more "oh this system was so complex that any one individual did not understand the impact of their decision(s), much much more than everyone/anyone was playing super fast and loose from their particular perspective "
On a different but related note, I also really enjoyed the Compleat Ubernerd, written by Tanta, all about mortgage servicing in the mid 2000s: https://www.calculatedriskblog.com/2007/07/compleat-ubernerd...
I'm not sure how it has aged (no Dodd-Frank updates, the author has passed away) but it was glorious in its time.
https://www.newyorkfed.org/medialibrary/media/research/staff...
The CR blog was not the same after she passed away.
(On Tanta's passing: https://www.calculatedriskblog.com/2008/11/sad-news-tanta-pa...)