The document discusses whether Agile has become mainstream in a way similar to how Waterfall became institutionalized. While surveys show growing adoption of Agile processes and practices, the authors argue that many organizations have only adopted surface-level aspects of Agile without fully embracing its cultural mindset. As a result, some Agile projects are at risk of failing. True adoption requires not just new processes but changes to organizational culture and a long-term investment in developing expertise.