I regularly patronize a cash only business off the grid for take out, and I talk to the owner and they are content with their business being small as it is. He makes great food, I pay for and eat it, simple as.
If he wanted to make a restaurant concept that prioritized slow, thoughtful eating. He could very well have done so.
The one thing that I will agree with him wholeheartedly however is the fact that many products like DoorDash or Uber Eats are staffed by engineers/PMs who don't care to do anything except to follow the data. To them, as they turn a knob too far in one direction, they tend to crush people in the process. It's very hard to build a product for users you can't really empathize with.
Best of luck to the author, there is a reason why the restaurant business chews as many people out as it lets in.