Hi. No, I don't think it is. Because your online applications that need low latency access to features won't tolerate the latencies provided by existing data warehouses. The online app that has an operation model that makes predictions is one client of the feature store. For the other client - a data scientist who is browsing features and creating train/test datasets - yes, that is similar to a data warehouse, except that you get APIs in Python and your data has precomputed statistics that make it better for exploratory data analysis than a traditional data warehouse.