Scaling should be faster than a speeding bullet` - Jennifer Seelin, highlighting the importance of speed in scaling MongoDB clusters. The new process implemented by MongoDB for M30 through M100 instance types reduces the time spent on scaling from multiple steps to just one, eliminating downtime and reducing the risk of index build times taking too long. By utilizing standard UNIX utilities and stopping EC2 instances in a rolling fashion, the replication of data is accelerated, allowing for faster upgrades with no downtime or modification to connection strings required by applications. This new process enables users to scale their clusters without interruption, ensuring stability and reliability in their always-changing environments.