Because the book advances the idea of "coupling" in and between systems. Both the physical artifacts and the human components interacting with them. It promotes an anticipatory stance that centers on "built to last" more than "built to hype". Especially relevant for our catastrophe-prone age.
Something more aligned to engineering design would be Henry Petroski's book, To Forgive Design. Especially lessons learned from failure and fracture analysis. His work is reviewed here: https://www.researchgate.net/publication/265711461_To_Forgive_Design_Understanding_Failure_by_Henry_Petroski_review
Article To Forgive Design: Understanding Failure by Henry Petroski (review)