This incident on Amazon's eu-west-1 data region highlights the importance of automatic failover mechanisms in Redis' services, which were able to keep customers with Multi-AZ plans unaffected and those using in-memory replication capabilities without downtime or data loss. The event also demonstrates the effectiveness of Redis' data persistence to EBS, allowing for quick data recovery, and its backup to S3 capability, enabling customers to quickly restore their data without intervention. The low number of customer contacts about this issue is encouraging, showcasing the protection offered by Redis' high availability mechanisms.