Not all SDS solutions are created equal
Sorry to disappoint your hate, but Nutanix has data locality for reads which normally does not go over the network. For writes just like SANs as they also must go over the network.
Not all SDS solutions are they same and there are inferior solutions out there that can give you all sorts of data resiliency issues. Nutanix was designed to keep your data integrity intact, resilient, and survive failures.