My comments were a bit tongue in cheek, as I am well aware of the massive aggitation that takes place in a washing machine, compared to our puny efforts ( by comparison ).
What is noticable on machine washed cushions, etc, is that, almost without exception, they have more colour loss / bleaching, but my wife tells me ths can be overcome by using " colour " enhancer products..................
IMO anything that might make your life easier / your business more productive, is worth an experiment, or two !