This makes no sense. This has nothing to do with the tech and more to do with every team's natural push and pull with build over buy. It's completely pointless to respond to someone who didn't get their DoorDash order with "see this is why you should just make food at home." It completely ignores the reason someone chose to order takeout in the first place.
But if someone chose DoorDash over a smaller delivery service because "DoorDash is big and reliable so the x5-10 cost is worth it", and then DoorDash fails repeatedly, it makes sense to ask "is DoorDash really better than using the smaller vendor?"