alt Hacker NewsIt's usually because your company doesn't fundamentally want it. You cannot have roadmaps with lists of features that you advertise to customers AND have the flexibility to decide to ignore things that turn out to be useless or disporportionately time consuming.
If someone handed you a plan for making a jet engine and you messed around with the instructions ... why would you expect it to work? If you have a bug because there are not enough tests ... you write more tests don't you? Why would a method be forgiving when compilers and reality itself aren't?
But that isn't evidence that the method works. If you're a native tribe, that has an ancient traditional rain dance, it is invoked whenever there is a drought. Sometimes it rains shortly after the dance is performed. But if it doesn't rain, it's not proof that you danced poorly, it's evidence that you didn't understand the situation fully or properly. The instructions or "wisdom" you relied on, didn't actually capture something useful.