The main intent of the Masters is (from my experience) is for pre-sales people.
To:
Be able to produce coherent and relevant demos and sales pitches (not my strong point.)
Ensure that sales and design teams are selling workable Meraki solutions and designs to customers.
Be a company representative that is aware of new and upcoming Meraki features and products.
Lets say that I can't say too much about the coherent design business but most design teams try to treat Meraki (and other cloud based solutions) in the same manner as regular Wi-Fi solutions (controllers located in a DC) and that route leads to some big and very avoidable issues.
I did ask if there could be another purely technical qualification created and the suggestion was noted and I hope that something turns up.