1 Gbps is slow. Even recent wifi can plausibly exceed 1 gpbs to a client. Pretty much any modern HDD (let alone ssd) can read or write faster. USB 3.1 is an order of magnitude faster and display port 2.0 tops out at about an order of magnitude faster than that. It doesn't really make sense to leave the main physical network interface so far in the dust, let alone claim it's overkill.