It depends on how you define "electric vehicle". It is pretty clear that they mean "batttery driven, no engine attached". And in that context, their statement is correct.
A vehicle (from Latin: vehiculum[1]) is a mobile machine that transports people or cargo. Typical vehicles include wagons, bicycles, motor vehicles (motorcycles, cars, trucks, buses), railed vehicles (trains, trams), watercraft (ships, boats), aircraft and spacecraft.[2]