>this was because they were purposefully trying to create a rallying cry or something akin to a religion to better sell their wares

> they came up with "extreme programming" and knew that a lot of it was kind of bullshit, disagreed with each other on the details

Money quotes!

I had attended a presentation by Kent Beck on "eXtreme Programming" well before the Agile/Scrum movement started and came away with the exact sentiments listed above.