SEO and UX teams don't collaborate enough according to the document. Rankbrain, Google's machine learning algorithm, is able to measure user interactions like click-through-rates and dwell time which could reward websites with better user experiences in search results. The document discusses tensions between optimizing for search engines versus users and provides tips for UX and SEO teams to work better together like working from the same brief, making an effort to understand each other's work, making work visible to the other team, and educating one another.