Does the perception around the chef/dishes contribute more to the positive experience than the actual taste of the food?
I think looking at a pizza restaraunt is a good comparison on how far away on-demand delivery can be from the delivery point. The range of a pizza place is usually only a few miles.
On a general note, you look at industry incumbents and they're not shy about leveraging technology as things are, so I'm not convinced that software is going to eat their lunch as the article claims.
Oh, did you mean to just limit your comment to the states?
Also, while I do live in the Bay Area I'm not American so your condescension is misplaced.
So I see them competing because they're focused on different things (and they're doing it right, at least for me -- I order dinner from Sprig 2-3 nights a week and lunch from SpoonRocket 2-3 times a week).
Traditional fast food restaurants (Chipotle excluded) optimize on price, speed and taste (similarly), but those all come at the expense of nutrition, which (disappointingly) most people don't seem to mind. I hope A) that changes as the US continues to get fatter, and B) these guys don't 'sell out' and drop their food quality because they realize that deep-fried cheap chicken is "tastier" and cheaper than grilled high-quality chicken, etc.
If the restaurant business were invented today, this is probably what it would look like. Their primary challenge will be finding out if enough customers like their new approach fast enough to get some staying power.