The demo video: https://www.youtube.com/watch?v=oWXco05eK28
The demo video: https://www.youtube.com/watch?v=oWXco05eK28
A restaurant can improve performance during the "lunch rush" by letting neat slip, but that carelessness is already costing them performance at the end of the lunch rush - this works because just as this catches up they get several hours in the afternoon to clean things up. Then supper crowd where they do it again - then they have the rest of the night to clean up from that. (the restaurants I worked in didn't have a breakfast rush, YMMV)
A factory by contrast needs to keep things neat and consistent all the time because there is never a rush/downtime. They want things rolling off the line at a consistent pace all day. Any compromise for speed now is a cost latter in the day.
I have never been in an Amazon warehouse so I don't have great insight into what things are like. I would expect they want to be more consistent all day - but I don't know. Maybe all the trucks arrive at once and then they get time when they are gone to clean up. I wouldn't expect that, but maybe.
The saying I do believe has a difference between robots and humans. The idea largely being that human inaccuracy increases exponentially relative to speed. Ergo, slowing down can lead to dramatically bette accuracy and throughput. Though, robots don't necessarily lose accuracy because they are moving more quickly. Though, I'd agree it is likely that both humans and robots need "smooth" in order to be fast. The key difference is robots do not always lose smooth when moving at high speed.