The Meraki Favorite answer was chosen by a distinguished panel of Meraki employees - a systems engineer, a support manager, an architect, and a technical trainer. The panel appreciated @SergeRobert1's emphasis on the full-stack approach. His submission demonstrated an in-depth understanding of best practice security policies, next generation threat detection, and end-to-end organizational security across multiple technology disciplines.
And, while we can't tell you exactly why 21 community members gave kudos to @geoffbernard's entry, we can tell you that this was over twice the number of kudos of the next-most-kudoed submission.
Congratulations to you both, and stay tuned for a PM from me about claiming your prize!