Don, it also sounds like the don't use the same array of hawsers with these new propulsion systems. Those would be cast off in specific sequences as part of the undocking procedure in different circumstances.
It also sounds like the evolution of ships controls has come almost full circle. Started out with steering oars, then tillers, then whipstaffs, then wheels. Then from wheel to yoke (tiller), from yoke to joystick (whipstafff). What's next, passengers pay to take turns rowing? :-)