> We've developed lots of tools of strategies so we don't have to rely on people getting it right every time.

I think one of the points of the article is that this isn't (sufficiently) true; people will use tools incorrectly and make excuses for deviating from the strategy often enough that it's a problem.

> Ugh I don't like his use of the word dumbass

Substitute "well-meaning person who makes a totally understandable process mistake"