> ... Thus it is. Thus it shall always be. ...

There is a lot of interesting material here, but even in the last decade the whole restaurant world has changed greatly. In particular various fast food options and the supply chains that make them popular have grown. Chipotle is still a hit even with the problems it has had and if you observe how they are run you will find evolutionary pressure has taken a significantly different course. Food safety has risen in prominance as an issue and optimization of preparation with methods from high production industries is changing how commercial kitchens are run.