It’s not about being an electric car.
It’s about being a remotely controllable car, which is not about the motor.
It’s not publicly known for all models, whether all manufacturers are putting remote OFF switches in new cars. Some models do have remote OFF listed as a feature, and some 3rd party security systems list that as a feature.
Many cars in recent decades have had some un-advertised remote control features, but most of those tended to require a local radio/wifi type connection to the car, rather than a broad (e.g. cell) connection.