It's a good read, but it's nearly 15 years old and there may not be enough context to where Yourdon was coming from. Almost as much time has passed since this essay was written as there was in Yourdon' career up to Death March. Much has happened since then. No one uses heavyweight methodologies, like UML. Processes are light and agile. Languages like Java, Python, and Ruby are way better, as are the associated tools. I consider the 1-week release cycle the biggest contributor to productivity.
It's ancient history. Lessons have been learned.