A bit long for what it's saying. And yet it's a good reminder, don't focus on why... Ask the question as many times as necessary to get to the point where you can find a solution which prevents issues to reappear.

This has been documented for a long while. Of course, it's been followed by an unhealthy fascination for the "Toyota way". This kind of cargo cult of course lead you nowhere to doing things properly. And yet, now that the dust settled, there are good lessons to learn from Toyota management back then.