The book is not a call to arms, nor does it present a list of suggestions for how to behave. The authors' direct opinions are circumscribed to the few pages of the Conclusion and the Appendix. And many of those comments have to do with either how academic sociology should do research or how the book was written. How five authors jointly wrote a single book sounds like an interesting story, but isn't commented on any further than to say it happened and it was a good thing.
As analysis it really does rank right up there with Alexis de Toqueville's Democracy in America and David Riesman's The Lonely Crowd. As political tract it isn't in the race.