Sorry for being too direct, but for the sake of clarity, and coming from my experience communicating with agile coaches - I think it is bullshit. I wonder if others have a similar experience/opinion...
Personally—I think because I've seen so little of the code I've written actually live long enough to seem worth the time it took to make it, including a bunch of small-potatoes projects for huge companies that took months of my work-life and then were simply binned because they changed direction or acquired some company with another solution or the project was doomed from the start because they'd very obviously allocated far too small a budget—I'm no longer turned off by the idea of having a job that's more-or-less understood to be entirely bullshit, the way I might once have been.