Flash appliances and enterprise disk systems are in separate markets and fulfil different requirements. Customers need large amounts of capacity that delivers high-levels of performance to a LOT of attached hosts. You can't do this today with a flash appliance.
These benchmarks show efficiency and performance - the cost per IOP was excellent for a high-end device and didn't require additional external virtualisation appliances to stripe across multiple backend arrays.
A single virtualised array that can scale this far - not easy to do or EMC would have benchmarked the VMAX ages ago.
Pull your head out of Netapp's backside long enough and you may understand what storage is really about.