I feel like he's touching on a fact that we in software development and UI/UX design need to take heed; know when to stop.
Case in point: Google Maps. The old version used to not be as pretty but it worked really well. The new one looks fantastic. It's also slow, buggy, and not nearly as feature rich. Someone, somewhere inside the Google Maps team said, "We need to put out an update!" and nobody asked, "But, why?"