Because the Japanese implementation is electro-mechanical. The nozzle auto-cleans and deploy from the big end like a fighter jet refueling boom with press of a

Because the Japanese implementation is electro-mechanical. The nozzle auto-cleans and deploy from the big end like a fighter jet refueling boom with press of a button, sometimes on a control panel, sometimes via an IR remote. Things get interesting when the remote dies in the middle of the ordeal or the stop button could not be immediately located.