Understanding search intent matters in SEO because it enhances UX (user experience). If your content matches the search intent, it gives users exactly what they're looking for. If they have a great experience, they'll explore your site more and take action.
Example: Imagine you’re searching for “best running shoes.” You click on a link expecting to see a list of top sneakers for running. But instead, you land on a product page selling a specific pair of running shoes. That’s a classic example of matching the keyword but totally missing the mark on intent.