Because it's much easier to implement a set of concrete guidelines (have a daily meeting, use story points, etc) and turn them intro strict rules, than to imple

Because it's much easier to implement a set of concrete guidelines (have a daily meeting, use story points, etc) and turn them intro strict rules, than to implement the more fundamental but less concrete guidelines (individuals and interactions over processes and tools). The same reason folk religion often focuses on hard, measurable rules (don't work on X, don't eat Y) instead of the more fundamental abstract ones (treat your fellow man as you want him to treat you).