Formula One race car goes faster than white van.
While it is interesting in a very basic way it really doesn't tell anyone anything not already known. So on a cost per IO it wins hands down but I suspect on a cost per GB of capacity it loses badly since I am going to guess that to get 900K IOPs for $2 million that they probably purchased a lot of spinning rust. They say to support 26TB of database they only needed 1.5 TB of flash but I would love to find anyone silly enough to pay $2 million for a 26TB array as I have some property in Spain I would like to sell them.
It would be more interesting and even possibly useful if they compared their performance to a Violin or other flash system.