(1) Restaurants are closed for indoor dining (or obviously should be anywhere they aren't). You literally can't sit in a restaurant in good faith, anywhere in the US today.
(2) The Food Delivery app prices are usually 5% to 20% higher than the in-dining counterparts.
(3) In addition to that, the order/delivery fees are much higher than all other competitors. (At least, on my app the 'delivery fee' from GrubHub is 25% higher than the equivalent delivery fee from the local Pizza Hut and Panera Bread, for example)
(4) And because of all of that, the default tip rates are also higher than all other delivery services.
(5) Despite all of the above, everyone is still paying for it. Paid-in-full delivery purchases are at an all-time high, despite all-time high prices for it.
(6) There's a massive record-high unemployment due to people who have lost their jobs from the pandemic! It's cheaper than ever to pick up folks as part-time drivers. And pizza places generally actually employ their drivers, delivery apps lie to the feds and claim their employees as 1099-contractors, cutting their costs even lower.
Sure, DoorDash's "efficiency" claims are all lies. But who cares, they don't need "magically efficient logistics" to make their model work, this model has already worked for every single random pizza place or equivalent from the past 40+ years straight.
These delivery-only-apps have the highest revenue and margins (while having the lowest overhead cost and lowest employee cost) of any food service business I've ever heard of. They've been handed the best possible scenario for their business. How they aren't wildly profitable right now is absolutely due to ridiculous management/financing shenanigans alone, and not because "ordering food for delivery via touch-tone telephone" is some inherently unsustainable business practice.