Doesn't this heavily apply to building software as well? e.g. instead of spray and pray development we should get a better understanding of the model we're work

Doesn't this heavily apply to building software as well? e.g. instead of spray and pray development we should get a better understanding of the model we're working with. If my parser gets null's when it should be non-null then I first need to find where they could potentially even come from, aka get a better understanding of the model I'm working with.