The article by the Coralogix Team highlights common mistakes in website performance monitoring and emphasizes the importance of intelligent data usage over merely acquiring more data. It identifies five typical errors: neglecting the end-user experience by focusing solely on backend data, allowing common errors to obscure new issues, ignoring older logs that might reveal slow-developing problems, setting incorrect alert thresholds, and paying attention only to critical alerts instead of leveraging data to predict and prevent issues. The piece advises using existing data visualization tools more effectively to avoid these pitfalls and ensure robust site performance monitoring.