The thing is, if you have lots of takers for dollars for 80 cents, that doesn't tell you very much about how many takers you'll have for dollars for $1.04.
If you charge too much for food delivery, you won't have very many customers. How much is too much, and does it leave you a profit is the big question.
maybe they can make it work, but probably not in a lot of markets.
In my experience as demand has increased due to the pandemic, prices are reaching the point where I'm not willing to pay them, and I make good money like most people on this site.
If that's any indication of what's to come when they need to stop bleeding cash... not looking great.