The core question here is how to ship quality software on time. This manifesto just seems to favor quality over shipping on time (e.g. "don't fear running late"

The core question here is how to ship quality software on time. This manifesto just seems to favor quality over shipping on time (e.g. "don't fear running late", "value quality over deadlines"). Sure, if you don't have to ship on a schedule then you don't have to spend as much time on estimates or prioritization or interfacing with management about it. Not necessarily the best strategy for all companies.